Giraffe - wikipedia Giraffe Tall African ungulate For other uses, see Giraffe ( disambiguation ). Giraffe Temporal range : 11.61 -- 0 Ma PreЄ Є Pg Miocene to Recent Masai giraffe ( G. c. tippelskirchi ) at the Mikumi National Park, Tanzania Conservation status Vulnerable ( IUCN 3.1 ) Scientific classification Kingdom : Animalia Phylum : Chordata Class : Mammalia Order : Artiodactyla Family : Giraffidae Genus : Giraffa Brisson, 1772 Type species Giraffa camelopardalis ( Linnaeus, 1758 ) Species See Taxonomy Range map of extant Giraffa subspecies. The giraffe ( Giraffa ) is a genus of African even - toed ungulate mammals, the tallest living terrestrial animals and the largest ruminants. The genus currently consists of one species, Giraffa camelopardalis, the type species. Seven other species are extinct, prehistoric species known from fossils. Taxonomic classifications of one to eight extant giraffe species have been described, based upon research into the mitochondrial and nuclear DNA, as well as morphological measurements of Giraffa, but the IUCN currently recognises only one species with nine subspecies. The giraffe 's chief distinguishing characteristics are its extremely long neck and legs, its horn - like ossicones, and its distinctive coat patterns. It is classified under the family Giraffidae, along with its closest extant relative, the okapi. Its scattered range extends from Chad in the north to South Africa in the south, and from Niger in the west to Somalia in the east. Giraffes usually inhabit savannahs and woodlands. Their food source is leaves, fruits and flowers of woody plants, primarily acacia species, which they browse at heights most other herbivores can not reach. They may be preyed on by lions, leopards, spotted hyenas and African wild dogs. Giraffes live in herds of related females and their offspring, or bachelor herds of unrelated adult males, but are gregarious and may gather in large aggregations. Males establish social hierarchies through `` necking '', which are combat bouts where the neck is used as a weapon. Dominant males gain mating access to females, which bear the sole responsibility for raising the young. The giraffe has intrigued various cultures, both ancient and modern, for its peculiar appearance, and has often been featured in paintings, books, and cartoons. It is classified by the International Union for Conservation of Nature as Vulnerable to extinction, and has been extirpated from many parts of its former range. Giraffes are still found in numerous national parks and game reserves but estimations as of 2016 indicate that there are approximately 97,500 members of Giraffa in the wild, with around 1,144 in captivity. Contents 1 Etymology 2 Taxonomy 2.1 Evolution 2.2 Species and subspecies 3 Appearance and anatomy 3.1 Skull and ossicones 3.2 Legs, locomotion and posture 3.3 Neck 3.4 Internal systems 4 Behaviour and ecology 4.1 Habitat and feeding 4.2 Social life 4.3 Reproduction and parental care 4.4 Necking 4.5 Mortality and health 5 Relationship with humans 5.1 Exploitation and conservation status 6 References 7 External links Etymology The name `` giraffe '' has its earliest known origins in the Arabic word zarāfah ( زرافة ), perhaps borrowed from the animal 's Somali name geri. The Arab name is translated as `` fast - walker ''. There were several Middle English spellings, such as jarraf, ziraph, and gerfauntz. The Italian form giraffa arose in the 1590s. The modern English form developed around 1600 from the French girafe. `` Camelopard '' is an archaic English name for the giraffe deriving from the Ancient Greek for camel and leopard, referring to its camel - like shape and its leopard - like colouring. Taxonomy Living giraffes were originally classified as one species by Carl Linnaeus in 1758. He gave it the binomial name Cervus camelopardalis. Morten Thrane Brünnich classified the genus Giraffa in 1772. The species name camelopardalis is from Latin. Evolution Ruminantia Tragulina Tragulidae Pecora Antilocapridae Giraffidae Cervidae Bovidae Moschidae Cladogram based on a 2003 study by Hassanin and Douzery. The giraffe is one of only two living genera of the family Giraffidae in the order Artiodactyla, the other being the okapi. The family was once much more extensive, with over 10 fossil genera described. Their closest known relatives are the extinct deer - like climacocerids. They, together with the family Antilocapridae ( whose only extant species is the pronghorn ), belong to the superfamily Giraffoidea. These animals may have evolved from the extinct family Palaeomerycidae which might also have been the ancestor of deer. The elongation of the neck appears to have started early in the giraffe lineage. Comparisons between giraffes and their ancient relatives suggest that vertebrae close to the skull lengthened earlier, followed by lengthening of vertebrae further down. One early giraffid ancestor was Canthumeryx which has been dated variously to have lived 25 -- 20 million years ago ( mya ), 17 -- 15 mya or 18 -- 14.3 mya and whose deposits have been found in Libya. This animal was medium - sized, slender and antelope - like. Giraffokeryx appeared 15 mya in the Indian subcontinent and resembled an okapi or a small giraffe, and had a longer neck and similar ossicones. Giraffokeryx may have shared a clade with more massively built giraffids like Sivatherium and Bramatherium. The extinct giraffid Samotherium ( middle ) in comparison with the okapi ( below ) and giraffe. The anatomy of Samotherium appears to have shown a transition to a giraffe - like neck. Giraffids like Palaeotragus, Shansitherium and Samotherium appeared 14 mya and lived throughout Africa and Eurasia. These animals had bare ossicones and small cranial sinuses and were longer with broader skulls. Paleotragus resembled the okapi and may have been its ancestor. Others find that the okapi lineage diverged earlier, before Giraffokeryx. Samotherium was a particularly important transitional fossil in the giraffe lineage as its cervical vertebrae was intermediate in length and structure between a modern giraffe and an okapi, and was more vertical than the okapi 's. Bohlinia, which first appeared in southeastern Europe and lived 9 -- 7 mya was likely a direct ancestor of the giraffe. Bohlinia closely resembled modern giraffes, having a long neck and legs and similar ossicones and dentition. Bohlinia entered China and northern India in response to climate change. From there, the genus Giraffa evolved and, around 7 mya, entered Africa. Further climate changes caused the extinction of the Asian giraffes, while the African giraffes survived and radiated into several new species. Living giraffes appear to have arisen around 1 mya in eastern Africa during the Pleistocene. Some biologists suggest the modern giraffes descended from G. jumae ; others find G. gracilis a more likely candidate. G. jumae was larger and more heavily built while G. gracilis was smaller and more lightly built. The main driver for the evolution of the giraffes is believed to have been the changes from extensive forests to more open habitats, which began 8 mya. During this time, tropical plants disappeared and were replaced by arid C4 plants, and a dry savannah emerged across eastern and northern Africa and western India. Some researchers have hypothesised that this new habitat coupled with a different diet, including acacia species, may have exposed giraffe ancestors to toxins that caused higher mutation rates and a higher rate of evolution. The coat patterns of modern giraffes may also have coincided with these habitat changes. Asian giraffes are hypothesised to have had more okapi - like colourations. In the early 19th century, Jean - Baptiste Lamarck believed the giraffe 's long neck was an `` acquired characteristic '', developed as generations of ancestral giraffes strove to reach the leaves of tall trees. This theory was eventually rejected, and scientists now believe the giraffe 's neck arose through Darwinian natural selection -- that ancestral giraffes with long necks thereby had a competitive feeding advantage ( competing browsers hypothesis ) that better enabled them to survive and reproduce to pass on their genes. The giraffe genome is around 2.9 billion base pairs in length compared to the 3.3 billion base pairs of the okapi. Of the proteins in giraffe and okapi genes, 19.4 % are identical. The two species are equally distantly related to cattle, suggesting the giraffe 's unique characteristics are not because of faster evolution. The divergence of giraffe and okapi lineages dates to around 11.5 mya. A small group of regulatory genes in the giraffe appear to be responsible for the animal 's stature and associated circulatory adaptations. Species and subspecies `` Approximate geographic ranges, fur patterns, and phylogenetic relationships between some giraffe subspecies based on mitochondrial DNA sequences. Colored dots on the map represent sampling localities. The phylogenetic tree is a maximum - likelihood phylogram based on samples from 266 giraffes. Asterisks along branches correspond to node values of more than 90 % bootstrap support. Stars at branch tips identify paraphyletic haplotypes found in Maasai and reticulated giraffes ''. The IUCN currently recognises only one species of giraffe with nine subspecies. In 2001, a two - species taxonomy was proposed. A 2007 study on the genetics of Giraffa, suggested they were six species : the West African, Rothschild 's, reticulated, Masai, Angolan, and South African giraffe. The study deduced from genetic differences in nuclear and mitochondrial DNA ( mtDNA ) that giraffes from these populations are reproductively isolated and rarely interbreed, though no natural obstacles block their mutual access. This includes adjacent populations of Rothschild 's, reticulated, and Masai giraffes. The Masai giraffe was also suggested to consist of possibly two species separated by the Rift Valley. Reticulated and Masai giraffes have the highest mtDNA diversity, which is consistent with giraffes originating in eastern Africa. Populations further north are more closely related to the former, while those to the south are more related to the latter. Giraffes appear to select mates of the same coat type, which are imprinted on them as calves. The implications of these findings for the conservation of giraffes were summarised by David Brown, lead author of the study, who told BBC News : `` Lumping all giraffes into one species obscures the reality that some kinds of giraffe are on the brink. Some of these populations number only a few hundred individuals and need immediate protection. '' A 2011 study using detailed analyses of the morphology of giraffes, and application of the phylogenetic species concept, described eight species of living giraffes. The eight species are : G. angolensis, G. antiquorum, G. camelopardalis, G. giraffa, G. peralta, G. reticulata, G. thornicrofti, and G. tippelskirchi. A 2016 study also concluded that living giraffes consist of multiple species. The researchers suggested the existence of four species, which have not exchanged genetic information between each other for 1 million to 2 million years. Those four species are the northern giraffe ( G. camelopardalis ), southern giraffe ( G. giraffa ), reticulated giraffe ( G. reticulata ), and Masai giraffe ( G. tippelskirchi ). Since then, a response to this publication has been published, highlighting seven problems in data interpretation, and concludes `` the conclusions should not be accepted unconditionally ''. There are an estimated 90,000 individuals of Giraffa in the wild, with 1,144 currently in captivity. There are also seven extinct species of giraffe, listed as the following : † Giraffa gracilis † Giraffa jumae † Giraffa priscilla † Giraffa punjabiensis † Giraffa pygmaea † Giraffa sivalensis † Giraffa stillei G. attica, also extinct, was formerly considered part of Giraffa but was reclassified as Bohlinia attica in 1929. Species and subspecies of giraffe One species taxonomy Four species taxonomy Eight species taxonomy Description Image Giraffe ( G. camelopardalis ) Northern giraffe ( G. camelopardalis ) Kordofan giraffe ( G. antiquorum ) The Kordofan giraffe ( G. c. antiquorum ) has a distribution which includes southern Chad, the Central African Republic, northern Cameroon, and north - eastern DR Congo. Populations in Cameroon were formerly included in G. c. peralta, but this was incorrect. Compared to the Nubian giraffe, this subspecies has smaller and more irregular spotting patterns. Its spots may be found below the hocks and the insides of the legs. A median lump is present in males. Some 2,000 are believed to remain in the wild. Considerable confusion has existed over the status of this species and G. c. peralta in zoos. In 2007, all alleged G. c. peralta in European zoos were shown to be, in fact, G. c. antiquorum. With this correction, about 65 are kept in zoos. The formerly recognised subspecies G. c. congoesis is now considered part of Kordofan species. Nubian giraffe including Rothschild 's giraffe ( G. camelopardalis ) also known as Baringo giraffe or Ugandan giraffe The Nubian giraffe ( G. c. camelopardalis ), is found in eastern South Sudan and south - western Ethiopia, in addition to Kenya and Uganda. It has sharply defined chestnut - coloured spots surrounded by mostly white lines, while undersides lack spotting. The median lump is particularly developed in the male. Around 2,150 are thought to remain in the wild, with another 1,500 individuals belonging to the Rothschild ecotype. With the addition of Rothschild 's giraffe to the Nubian subspecies, the Nubian giraffe is very common in captivity, although the original phenotype is rare - a group is kept at Al Ain Zoo in the United Arab Emirates. In 2003, this group numbered 14. The Rothschild 's giraffe ( G. c. rothschildi ) may be an ecotype of G. camelopardalis. Its range includes parts of Uganda and Kenya. Its presence in South Sudan is uncertain. This giraffe has large dark patches that usually have complete margins, but may also have sharp edges. The dark spots may also have paler radiating lines or streaks within them. Spotting does not often reach below the hocks and almost never to the hooves. This ecotype may also develop five `` horns ''. Around 1,500 individuals believed to remain in the wild, and more than 450 are kept in zoos. According to genetic analysis circa September 2016, it is conspecific with the Nubian giraffe ( G. c. camelopardalis ). West African giraffe ( G. peralta ), also known as Niger giraffe or Nigerian giraffe The West African giraffe ( G. c. peralta ) is endemic to south - western Niger. This animal has a lighter pelage than other subspecies, with red lobe - shaped blotches that reach below the hocks. The ossicones are more erect than in other subspecies and males have well - developed median lumps. It is the most endangered subspecies within Giraffa, with 400 individuals remaining in the wild. Giraffes in Cameroon were formerly believed to belong to this species, but are actually G. c. antiquorum. This error resulted in some confusion over its status in zoos, but in 2007, it was established that all `` G. c. peralta '' kept in European zoos actually are G. c. antiquorum. The same 2007 study found that The West African giraffe was more closely related to the Rothchild 's giraffe than the Kordofan and its ancestor may have migrated from eastern to northern Africa and then to its current range with the development of the Sahara Desert. At its largest, Lake Chad may have acted as a barrier between West African and Kordofan giraffes during the Holocene ( before 5000 BC ). Reticulated giraffe ( G. reticulata ), also known as Somali giraffe The reticulated giraffe ( G. c. reticulata ) is native to north - eastern Kenya, southern Ethiopia, and Somalia. Its distinctive coat pattern consists of sharp - edged, reddish brown polygonal patches divided by a network of thin white lines. Spots may or may not extend below the hocks, and a median lump is present in males. An estimated 8,660 individuals remain in the wild, and based on International Species Information System records, more than 450 are kept in zoos. Southern giraffe ( G. giraffa ) Angolan giraffe ( G. angolensis ), also known as Namibian giraffe The Angolan giraffe ( G. c. angolensis ) is found in northern Namibia, south - western Zambia, Botswana, and western Zimbabwe. A 2009 genetic study on this subspecies suggested the northern Namib Desert and Etosha National Park populations form a separate subspecies. This species has large brown blotches with edges that are either somewhat notched or have angular extensions. The spotting pattern extends throughout the legs but not the upper part of the face. The neck and rump patches tend to be fairly small. The species also has a white ear patch. An estimated 13,000 animals are estimated to remain in the wild ; and about 20 are kept in zoos. South African giraffe ( G. giraffa ) also known as Cape giraffe The South African giraffe ( G. c. giraffa ) is found in northern South Africa, southern Botswana, southern Zimbabwe, and south - western Mozambique. It has dark, somewhat rounded patches `` with some fine projections '' on a tawny background colour. The spots extend down the legs and get smaller. The median lump of males is less developed. A maximum of 31,500 are estimated to remain in the wild, and around 45 are kept in zoos. Masai giraffe ( G. tippelskirchi ) Masai giraffe ( G. tippelskirchi ), also known as Kilimanjaro giraffe The Masai giraffe ( G. c. tippelskirchi ) can be found in central and southern Kenya and in Tanzania. It has distinctive, irregular, jagged, star - like blotches which extend to the hooves. A median lump is usually present in males. A total of 32,550 are thought to remain in the wild, and about 100 are kept in zoos. Thornicroft 's giraffe ( `` G. thornicrofti '', after Harry Scott Thornicroft ), also known as Luangwa giraffe, or Rhodesian giraffe The Thornicroft 's giraffe ( G. c. thornicrofti ) is restricted to the Luangwa Valley in eastern Zambia. The patches are notched and somewhat star - shaped, and may or may not extend across the legs. The median lump of males is underdeveloped. No more than 550 remain in the wild, with none kept in zoos. Appearance and anatomy Wikimedia Commons has media related to Giraffa camelopardalis anatomy. Closeup of the head of a giraffe at the Melbourne Zoo Giraffe skeleton on display at the Museum of Osteology, Oklahoma City, Oklahoma Right hind leg of a Masai giraffe at San Diego Zoo Fully grown giraffes stand 4.3 -- 5.7 m ( 14.1 -- 18.7 ft ) tall, with males taller than females. The tallest recorded male was 5.88 m ( 19.3 ft ) and the tallest recorded female was 5.17 m ( 17.0 ft ) tall. The average weight is 1,192 kg ( 2,628 lb ) for an adult male and 828 kg ( 1,825 lb ) for an adult female with maximum weights of 1,930 kg ( 4,250 lb ) and 1,180 kg ( 2,600 lb ) having been recorded for males and females, respectively. Despite its long neck and legs, the giraffe 's body is relatively short. Located at both sides of the head, the giraffe 's large, bulging eyes give it good all - round vision from its great height. Giraffes see in colour and their senses of hearing and smell are also sharp. The animal can close its muscular nostrils to protect against sandstorms and ants. The giraffe 's prehensile tongue is about 45 cm ( 18 in ) long. It is purplish - black in colour, perhaps to protect against sunburn, and is useful for grasping foliage, as well as for grooming and cleaning the animal 's nose. The upper lip of the giraffe is also prehensile and useful when foraging and is covered in hair to protect against thorns. The tongue, and inside of the mouth are covered in papillae. Play media ( video ) A pair of giraffes at Tobu Zoo, in Saitama, Japan The coat has dark blotches or patches ( which can be orange, chestnut, brown, or nearly black in colour ) separated by light hair ( usually white or cream in colour ). Male giraffes become darker as they age. The coat pattern has been claimed to serve as camouflage in the light and shade patterns of savannah woodlands. While adult giraffes standing among trees and bushes are hard to see at even a few metres ' distance, they actively move into the open to gain the best view of an approaching predator, obviating any benefit that camouflage might bring. Instead, the adults rely on their size and ability to defend themselves. However, camouflage appears to be important for calves, which spend a large part of the day in hiding, away from their mothers ; further, over half of all calves die within a year, so predation is certainly important. It appears, therefore, that the spotted coat of the giraffe functions as camouflage for the young, while adults simply inherit this coloration as a by - product. The skin underneath the dark areas may serve as windows for thermoregulation, being sites for complex blood vessel systems and large sweat glands. Each individual giraffe has a unique coat pattern. The skin of a giraffe is mostly gray. Its thickness allows the animal to run through thorn bush without being punctured. The fur may serve as a chemical defence, as its parasite repellents give the animal a characteristic scent. At least 11 main aromatic chemicals are in the fur, although indole and 3 - methylindole are responsible for most of the smell. Because the males have a stronger odour than the females, the odour may also have sexual function. Along the animal 's neck is a mane made of short, erect hairs. The one - metre ( 3.3 - ft ) tail ends in a long, dark tuft of hair and is used as a defense against insects. Skull and ossicones Both sexes have prominent horn - like structures called ossicones, which are formed from ossified cartilage, covered in skin and fused to the skull at the parietal bones. Being vascularized, the ossicones may have a role in thermoregulation, and are also used in combat between males. Appearance is a reliable guide to the sex or age of a giraffe : the ossicones of females and young are thin and display tufts of hair on top, whereas those of adult males end in knobs and tend to be bald on top. Also, a median lump, which is more prominent in males, emerges at the front of the skull. Males develop calcium deposits that form bumps on their skulls as they age. A giraffe 's skull is lightened by multiple sinuses. However, as males age, their skulls become heavier and more club - like, helping them become more dominant in combat. The upper jaw has a grooved palate and lacks front teeth. The giraffe 's molars have a rough surface. Legs, locomotion and posture The front and back legs of a giraffe are about the same length. The radius and ulna of the front legs are articulated by the carpus, which, while structurally equivalent to the human wrist, functions as a knee. It appears that a suspensory ligament allows the lanky legs to support the animal 's great weight. The foot of the giraffe reaches a diameter of 30 cm ( 12 in ), and the hoof is 15 cm ( 5.9 in ) high in males and 10 cm ( 3.9 in ) in females. The rear of each hoof is low and the fetlock is close to the ground, allowing the foot to provide additional support to the animal 's weight. Giraffes lack dewclaws and interdigital glands. The giraffe 's pelvis, though relatively short, has an ilium that is outspread at the upper ends. A giraffe has only two gaits : walking and galloping. Walking is done by moving the legs on one side of the body at the same time, then doing the same on the other side. When galloping, the hind legs move around the front legs before the latter move forward, and the tail will curl up. The animal relies on the forward and backward motions of its head and neck to maintain balance and the counter momentum while galloping. The giraffe can reach a sprint speed of up to 60 km / h ( 37 mph ), and can sustain 50 km / h ( 31 mph ) for several kilometres. A giraffe rests by lying with its body on top of its folded legs. To lie down, the animal kneels on its front legs and then lowers the rest of its body. To get back up, it first gets on its knees and spreads its hind legs to raise its hindquarters. It then straightens its front legs. With each step, the animal swings its head. In captivity, the giraffe sleeps intermittently around 4.6 hours per day, mostly at night. It usually sleeps lying down, however, standing sleeps have been recorded, particularly in older individuals. Intermittent short `` deep sleep '' phases while lying are characterised by the giraffe bending its neck backwards and resting its head on the hip or thigh, a position believed to indicate paradoxical sleep. If the giraffe wants to bend down to drink, it either spreads its front legs or bends its knees. Giraffes would probably not be competent swimmers as their long legs would be highly cumbersome in the water, although they could possibly float. When swimming, the thorax would be weighed down by the front legs, making it difficult for the animal to move its neck and legs in harmony or keep its head above the surface. Neck The giraffe ( right ) and its close relative the okapi ( left ) both have seven cervical vertebrae The giraffe has an extremely elongated neck, which can be up to 2 -- 2.4 m ( 6.6 -- 7.9 ft ) in length, accounting for much of the animal 's vertical height. The long neck results from a disproportionate lengthening of the cervical vertebrae, not from the addition of more vertebrae. Each cervical vertebra is over 28 cm ( 11 in ) long. They comprise 52 -- 54 per cent of the length of the giraffe 's vertebral column, compared with the 27 -- 33 percent typical of similar large ungulates, including the giraffe 's closest living relative, the okapi. This elongation largely takes place after birth, perhaps because giraffe mothers would have a difficult time giving birth to young with the same neck proportions as adults. The giraffe 's head and neck are held up by large muscles and a strengthened nuchal ligament, which are anchored by long dorsal spines on the anterior thoracic vertebrae, giving the animal a hump. Adult male reticulated giraffe feeding high up on an acacia, in Kenya The giraffe 's neck vertebrae have ball and socket joints. In particular, the atlas -- axis joint ( C1 and C2 ) allows the animal to tilt its head vertically and reach more branches with the tongue. The point of articulation between the cervical and thoracic vertebrae of giraffes is shifted to lie between the first and second thoracic vertebrae ( T1 and T2 ), unlike most other ruminants where the articulation is between the seventh cervical vertebra ( C7 ) and T1. This allows C7 to contribute directly to increased neck length and has given rise to the suggestion that T1 is actually C8, and that giraffes have added an extra cervical vertebra. However, this proposition is not generally accepted, as T1 has other morphological features, such as an articulating rib, deemed diagnostic of thoracic vertebrae, and because exceptions to the mammalian limit of seven cervical vertebrae are generally characterised by increased neurological anomalies and maladies. There are several hypotheses regarding the evolutionary origin and maintenance of elongation in giraffe necks. The `` competing browsers hypothesis '' was originally suggested by Charles Darwin and challenged only recently. It suggests that competitive pressure from smaller browsers, such as kudu, steenbok and impala, encouraged the elongation of the neck, as it enabled giraffes to reach food that competitors could not. This advantage is real, as giraffes can and do feed up to 4.5 m ( 15 ft ) high, while even quite large competitors, such as kudu, can feed up to only about 2 m ( 6 ft 7 in ) high. There is also research suggesting that browsing competition is intense at lower levels, and giraffes feed more efficiently ( gaining more leaf biomass with each mouthful ) high in the canopy. However, scientists disagree about just how much time giraffes spend feeding at levels beyond the reach of other browsers, and a 2010 study found that adult giraffes with longer necks actually suffered higher mortality rates under drought conditions than their shorter - necked counterparts. This study suggests that maintaining a longer neck requires more nutrients, which puts longer - necked giraffes at risk during a food shortage. Another theory, the sexual selection hypothesis, proposes that the long necks evolved as a secondary sexual characteristic, giving males an advantage in `` necking '' contests ( see below ) to establish dominance and obtain access to sexually receptive females. In support of this theory, necks are longer and heavier for males than females of the same age, and the former do not employ other forms of combat. However, one objection is that it fails to explain why female giraffes also have long necks. It has also been proposed that the neck serves to give the animal greater vigilance. Internal systems Reticulated giraffe bending down to drink, in Kenya. The circulatory system is adapted to deal with blood flow rushing down its neck. In mammals, the left recurrent laryngeal nerve is longer than the right ; in the giraffe it is over 30 cm ( 12 in ) longer. These nerves are longer in the giraffe than in any other living animal ; the left nerve is over 2 m ( 6 ft 7 in ) long. Each nerve cell in this path begins in the brainstem and passes down the neck along the vagus nerve, then branches off into the recurrent laryngeal nerve which passes back up the neck to the larynx. Thus, these nerve cells have a length of nearly 5 m ( 16 ft ) in the largest giraffes. The structure of a giraffe 's brain resembles that of domestic cattle. It is kept cool by evaporative heat loss in the nasal passages. The shape of the skeleton gives the giraffe a small lung volume relative to its mass. Its long neck gives it a large amount of dead space, in spite of its narrow windpipe. These factors increase the resistance to airflow. Nevertheless, the animal can still supply enough oxygen to its tissues and it can increase its respiratory rate and oxygen diffusion when running. Giraffe 's snout while drinking The circulatory system of the giraffe has several adaptations for its great height. Its heart, which can weigh more than 11 kg ( 25 lb ) and measures about 60 cm ( 2 ft ) long, must generate approximately double the blood pressure required for a human to maintain blood flow to the brain. As such, the wall of the heart can be as thick as 7.5 cm ( 3.0 in ). Giraffes have unusually high heart rates for their size, at 150 beats per minute. When the animal lowers its head the blood rushes down fairly unopposed and a rete mirabile in the upper neck, with its large cross sectional area, prevents excess blood flow to the brain. When it raises again, the blood vessels constrict and direct blood into the brain so the animal does not faint. The jugular veins contain several ( most commonly seven ) valves to prevent blood flowing back into the head from the inferior vena cava and right atrium while the head is lowered. Conversely, the blood vessels in the lower legs are under great pressure because of the weight of fluid pressing down on them. To solve this problem, the skin of the lower legs is thick and tight ; preventing too much blood from pouring into them. Giraffes have oesophageal muscles that are unusually strong to allow regurgitation of food from the stomach up the neck and into the mouth for rumination. They have four chambered stomachs, as in all ruminants, and the first chamber has adapted to their specialised diet. The intestines of an adult giraffe measure more than 70 m ( 230 ft ) in length and have a relatively small ratio of small to large intestine. The liver of the giraffe is small and compact. A gallbladder is generally present during fetal life, but it may disappear before birth. Behaviour and Ecology. Habitat and feeding A Masai giraffe extending its tongue to feed, in Tanzania. Its tongue, lips and palate are tough enough to deal with sharp thorns in trees. Giraffes usually inhabit savannahs and open woodlands. They prefer Acacieae, Commiphora, Combretum and open Terminalia woodlands over denser environments like Brachystegia woodlands. The Angolan giraffe can be found in desert environments. Giraffes browse on the twigs of trees, preferring trees of the subfamily Acacieae and the genera Commiphora and Terminalia, which are important sources of calcium and protein to sustain the giraffe 's growth rate. They also feed on shrubs, grass and fruit. A giraffe eats around 34 kg ( 75 lb ) of foliage daily. When stressed, giraffes may chew the bark off branches. Although herbivorous, the giraffe has been known to visit carcasses and lick dried meat off bones. During the wet season, food is abundant and giraffes are more spread out, while during the dry season, they gather around the remaining evergreen trees and bushes. Mothers tend to feed in open areas, presumably to make it easier to detect predators, although this may reduce their feeding efficiency. As a ruminant, the giraffe first chews its food, then swallows it for processing and then visibly passes the half - digested cud up the neck and back into the mouth to chew again. It is common for a giraffe to salivate while feeding. The giraffe requires less food than many other herbivores because the foliage it eats has more concentrated nutrients and it has a more efficient digestive system. The animal 's faeces come in the form of small pellets. When it has access to water, a giraffe drinks at intervals no longer than three days. Giraffes have a great effect on the trees that they feed on, delaying the growth of young trees for some years and giving `` waistlines '' to trees that are too tall. Feeding is at its highest during the first and last hours of daytime. Between these hours, giraffes mostly stand and ruminate. Rumination is the dominant activity during the night, when it is mostly done lying down. Social life Gathering of female southern giraffes in Tswalu Kalahari Reserve, South Africa. These animals commonly gather in herds. Giraffes are usually found in groups. Traditionally, the composition of these groups has been described as open and ever - changing. Giraffes were thought to have few social bonds and for research purposes, a `` group '' has been defined as `` a collection of individuals that are less than a kilometre apart and moving in the same general direction. '' More recent studies have found that giraffes do have long - term social associations and may form groups or pairs based on kinship, sex or other factors. These groups may regularly associate with one another in larger communities or sub-communities within a fission -- fusion society. The number of giraffes in a group can range up to 44 individuals. Giraffe hum Giraffe hum, ogg / Vorbis format. Giraffe snort Giraffe snort ogg / Vorbis format. Giraffe grunt Giraffe grunt ogg / Vorbis format. Giraffe bursts Giraffe bursts ogg / Vorbis format Problems playing these files ? See media help. Giraffe groups tend to be sex - segregated although mixed - sex groups made of adult females and young males are known to occur. Particularly stable giraffe groups are those made of mothers and their young, which can last weeks or months. Social cohesion in these groups is maintained by the bonds formed between calves. Female association appears to be based on space - use and individuals may be matrilineally related. In general, females are more selective than males in who they associate with in regards to individuals of the same sex. Young males also form groups and will engage in playfights. However, as they get older males become more solitary but may also associate in pairs or with female groups. Giraffes are not territorial, but they have home ranges. Male giraffes occasionally wander far from areas that they normally frequent. Although generally quiet and non-vocal, giraffes have been heard to communicate using various sounds. During courtship, males emit loud coughs. Females call their young by bellowing. Calves will emit snorts, bleats, mooing and mewing sounds. Giraffes also snore, hiss, moan, grunt and make flute - like sounds, and possibly communicate over long distances using infrasound -- though this is disputed. During nighttime, giraffes appear to hum to each other above the infrasound range for purposes which are unclear. Reproduction and parental care Southern giraffes courting ( above ) and mating in Namibia. Generally, only dominant males are able to mate with females. Reproduction in giraffes is broadly polygamous : a few older males mate with the fertile females. Male giraffes assess female fertility by tasting the female 's urine to detect oestrus, in a multi-step process known as the flehmen response. Males prefer young adult females over juveniles and older adults. Once an oestrous female is detected, the male will attempt to court her. When courting, dominant males will keep subordinate ones at bay. A courting male may lick a female 's tail, rest his head and neck on her body or nudge her with his horns. During copulation, the male stands on his hind legs with his head held up and his front legs resting on the female 's sides. Giraffe gestation lasts 400 -- 460 days, after which a single calf is normally born, although twins occur on rare occasions. The mother gives birth standing up. The calf emerges head and front legs first, having broken through the fetal membranes, and falls to the ground, severing the umbilical cord. The mother then grooms the newborn and helps it stand up. A newborn giraffe is 1.7 -- 2 m ( 5.6 -- 6.6 ft ) tall. Within a few hours of birth, the calf can run around and is almost indistinguishable from a one - week - old. However, for the first 1 -- 3 weeks, it spends most of its time hiding ; its coat pattern providing camouflage. The ossicones, which have lain flat while it was in the womb, become erect within a few days. Mother Masai giraffe and calves feeding in Kenya. It is mostly the females that raise young, and they may gather in nursery herds. Mothers with calves will gather in nursery herds, moving or browsing together. Mothers in such a group may sometimes leave their calves with one female while they forage and drink elsewhere. This is known as a `` calving pool ''. Adult males play almost no role in raising the young, although they appear to have friendly interactions. Calves are at risk of predation, and a mother giraffe will stand over her calf and kick at an approaching predator. Females watching calving pools will only alert their own young if they detect a disturbance, although the others will take notice and follow. The length time in which offspring stay with their mother varies, though it can last until the female 's next calving. Likewise, calves may suckle for only a month or as long as a year. Females become sexually mature when they are four years old, while males become mature at four or five years. Spermatogenesis in male giraffes begins at three to four years of age. Males must wait until they are at least seven years old to gain the opportunity to mate. Necking Here, male southern giraffes engage in low intensity necking to establish dominance, in Ithala Game Reserve, Kwa - Zulu - Natal, South Africa. The more active kind of necking, engaged with here by southern giraffes in Namibia. Male giraffes use their necks as weapons in combat, a behaviour known as `` necking ''. Necking is used to establish dominance and males that win necking bouts have greater reproductive success. This behaviour occurs at low or high intensity. In low intensity necking, the combatants rub and lean against each other. The male that can hold itself more erect wins the bout. In high intensity necking, the combatants will spread their front legs and swing their necks at each other, attempting to land blows with their ossicones. The contestants will try to dodge each other 's blows and then get ready to counter. The power of a blow depends on the weight of the skull and the arc of the swing. A necking duel can last more than half an hour, depending on how well matched the combatants are. Although most fights do not lead to serious injury, there have been records of broken jaws, broken necks, and even deaths. After a duel, it is common for two male giraffes to caress and court each other. Such interactions between males have been found to be more frequent than heterosexual coupling. In one study, up to 94 percent of observed mounting incidents took place between males. The proportion of same - sex activities varied from 30 -- 75 percent. Only one percent of same - sex mounting incidents occurred between females. Mortality and health Lioness seen with an adult Masai giraffe kill Giraffes have high adult survival probability, and an unusually long lifespan compared to other ruminants, up to 25 years in the wild. Because of their size, eyesight and powerful kicks, adult giraffes are usually not subject to predation, aside from lions. Giraffes are the most common prey for the big cats in Kruger National Park. Nile crocodiles can also be a threat to giraffes when they bend down to drink. Calves are much more vulnerable than adults, and are additionally preyed on by leopards, spotted hyenas and wild dogs. A quarter to a half of giraffe calves reach adulthood. Calf survival varies according to the season of birth, with calves born during the dry season having higher survival rates. The local, seasonal presence of large herds of migratory wildebeests and zebras reduces predation pressure on giraffe calves and increases their survival probability. Some parasites feed on giraffes. They are often hosts for ticks, especially in the area around the genitals, which has thinner skin than other areas. Tick species that commonly feed on giraffes are those of genera Hyalomma, Amblyomma and Rhipicephalus. Giraffes may rely on red - billed and yellow - billed oxpeckers to clean them of ticks and alert them to danger. Giraffes host numerous species of internal parasite and are susceptible to various diseases. They were victims of the ( now eradicated ) viral illness rinderpest. Giraffes can also suffer from a skin disorder, which comes in the form of wrinkles, lesions or raw fissures. In Tanzania, it appears to be caused by a nematode, and may be further affected by secondary infections. As much as 79 % of giraffes show signs of the disease in Ruaha National Park, but is less prevalent in areas with fertile soils. Relationship with humans San rock art in Namibia depicting a giraffe Humans have interacted with giraffes for millennia. The San people of southern Africa have medicine dances named after some animals ; the giraffe dance is performed to treat head ailments. How the giraffe got its height has been the subject of various African folktales, including one from eastern Africa which explains that the giraffe grew tall from eating too many magic herbs. Giraffes were depicted in art throughout the African continent, including that of the Kiffians, Egyptians and Meroë Nubians. The Kiffians were responsible for a life - size rock engraving of two giraffes that has been called the `` world 's largest rock art petroglyph ''. The Egyptians gave the giraffe its own hieroglyph, named ' sr ' in Old Egyptian and ' mmy ' in later periods. They also kept giraffes as pets and shipped them around the Mediterranean. Painting of a giraffe imported to China during the Ming dynasty The giraffe was also known to the Greeks and Romans, who believed that it was an unnatural hybrid of a camel and a leopard and called it camelopardalis. The giraffe was among the many animals collected and displayed by the Romans. The first one in Rome was brought in by Julius Caesar in 46 BC and exhibited to the public. With the fall of the Western Roman Empire, the housing of giraffes in Europe declined. During the Middle Ages, giraffes were known to Europeans through contact with the Arabs, who revered the giraffe for its peculiar appearance. Individual captive giraffes were given celebrity status throughout history. In 1414, a giraffe was shipped from Malindi to Bengal. It was then taken to China by explorer Zheng He and placed in a Ming dynasty zoo. The animal was a source of fascination for the Chinese people, who associated it with the mythical Qilin. The Medici giraffe was a giraffe presented to Lorenzo de ' Medici in 1486. It caused a great stir on its arrival in Florence. Zarafa, another famous giraffe, was brought from Egypt to Paris in the early 19th century as a gift from Muhammad Ali of Egypt to Charles X of France. A sensation, the giraffe was the subject of numerous memorabilia or `` giraffanalia ''. Giraffes continue to have a presence in modern culture. Salvador Dalí depicted them with burning manes in some of his surrealist paintings. Dali considered the giraffe to be a symbol of masculinity, and a flaming giraffe was meant to be a `` masculine cosmic apocalyptic monster ''. Several children 's books feature the giraffe, including David A. Ufer 's The Giraffe Who Was Afraid of Heights, Giles Andreae 's Giraffes Ca n't Dance and Roald Dahl 's The Giraffe and the Pelly and Me. Giraffes have appeared in animated films, as minor characters in Disney 's The Lion King and Dumbo, and in more prominent roles in The Wild and in the Madagascar films. Sophie the Giraffe has been a popular teether since 1961. Another famous fictional giraffe is the Toys `` R '' Us mascot Geoffrey the Giraffe. The giraffe has also been used for some scientific experiments and discoveries. Scientists have looked at the properties of giraffe skin when developing suits for astronauts and fighter pilots because the people in these professions are in danger of passing out if blood rushes to their legs. Computer scientists have modeled the coat patterns of several subspecies using reaction -- diffusion mechanisms. The constellation of Camelopardalis, introduced in the seventeenth century, depicts a giraffe. The Tswana people of Botswana traditionally see the constellation Crux as two giraffes -- Acrux and Mimosa forming a male, and Gacrux and Delta Crucis forming the female. Exploitation and Conservation status Masai giraffe killed by tribesmen in German East Africa during the early 20th century Giraffes were probably common targets for hunters throughout Africa. Different parts of their bodies were used for different purposes. Their meat was used for food. The tail hairs served as flyswatters, bracelets, necklaces and thread. Shields, sandals and drums were made using the skin, and the strings of musical instruments were from the tendons. The smoke from burning giraffe skins was used by the medicine men of Buganda to treat nose bleeds. The Humr people of Sudan consume the drink Umm Nyolokh ; which is created from the liver and marrow of giraffes. Umm Nyolokh often contains DMT and other psychoactive substances from plants the giraffes eat such as Acacia ; and is known to cause hallucinations of giraffes, believed to be the giraffes ' ghosts by the Humr. In the 19th century, European explorers began to hunt them for sport. Habitat destruction has hurt the giraffe, too : in the Sahel, the need for firewood and grazing room for livestock has led to deforestation. Normally, giraffes can coexist with livestock, since they do not directly compete with them. In 2017, severe droughts in northern Kenya have led to increased tensions over land and the killing of wildlife by herders, with giraffe populations being particularly hit. Aerial survey is the most common method of monitoring giraffe population trends in the vast roadless tracts of African landscapes, but aerial methods are known to undercount giraffes. Ground - based survey methods are more accurate and should be used in conjunction with aerial surveys to make accurate estimates of population sizes and trends. In 2010, giraffes were assessed as Least Concern from a conservation perspective by the International Union for Conservation of Nature ( IUCN ), but the 2016 assessment categorized giraffes as Vulnerable. Giraffes have been extirpated from much of their historic range including Eritrea, Guinea, Mauritania and Senegal. They may also have disappeared from Angola, Mali, and Nigeria, but have been introduced to Rwanda and Swaziland. Two subspecies, the West African giraffe and the Rothschild giraffe, have been classified as endangered, as wild populations of each of them number in the hundreds. In 1997, Jonathan Kingdon suggested that the Nubian giraffe was the most threatened of all giraffes ; as of 2010, it may number fewer than 250, although this estimate is uncertain. Private game reserves have contributed to the preservation of giraffe populations in southern Africa. Giraffe Manor is a popular hotel in Nairobi that also serves as sanctuary for Rothschild 's giraffes. The giraffe is a protected species in most of its range. It is the national animal of Tanzania, and is protected by law. Unauthorised killing can result in imprisonment. The UN backed Convention of Migratory Species selected giraffes for protection in 2017. In 1999, it was estimated that over 140,000 giraffes existed in the wild, estimations as of 2016 indicate that there are approximately 97,500 members of Giraffa in the wild, down from 155,000 in 1985, with around 1,144 in captivity. References ^ Jump up to : Muller, Z. ; Bercovitch, F. ; Brand, R. ; Brown, D. ; Brown, M. ; Bolger, D. ; Carter, K. ; Deacon, F. ; Doherty, J.B. ; Fennessy, J. ; Fennessy, S. ; Hussein, A.A. ; Lee, D. ; Marais, A. ; Strauss, M. ; Tutchings, A. & Wube, T. ( 2016 ). `` Giraffa camelopardalis ''. The IUCN Red List of Threatened Species. IUCN. 2016 : e. T9194A109326950. doi : 10.2305 / IUCN. UK. 2016 - 3. RLTS. T9194A51140239. en. Retrieved 23 December 2017. ^ Jump up to : `` Giraffe ''. Online Etymology Dictionary. Retrieved 1 November 2011. Jump up ^ Peust, C. ( 2009 ). `` Some Cushitic Etymologies ''. In Dolgopolʹskiĭ, A. ; Takács, G. ; Jungraithmayr, H. Semito - Hamitic Festschrift for A.B. Dolgopolsky and H. Jungraithmayr. Reimer. pp. 257 -- 60. ISBN 3 - 496 - 02810 - 6. ^ Jump up to : Kingdon, J. ( 1997 ). The Kingdon Field Guide to African Mammals. Academic Press. pp. 339 -- 44. ISBN 0 - 12 - 408355 - 2. Jump up ^ `` Definition of CAMELOPARD ''. m-w.com. Encyclopædia Britannica : Merriam - Webster. Retrieved 3 September 2014. Jump up ^ `` Definition of camelopard ''. Dictionary of Medieval Terms and Phrases. Retrieved 3 September 2014. ^ Jump up to : Dagg, A.I. ( 1971 ). `` Giraffa camelopardalis '' ( PDF ). Mammalian Species. 5 ( 5 ) : 1 -- 8. doi : 10.2307 / 3503830. JSTOR 3503830. Jump up ^ `` camelopardalis ''. A Latin Dictionary, Perseus Digital Library. Retrieved 23 November 2011. Jump up ^ Hassanin, A. ; Douzery, E.J.P. ( 2003 ). `` Molecular and morphological phylogenies of Ruminantia and the alternative position of the Moschidae '' ( PDF ). Systematic Biology. 52 ( 2 ) : 206 -- 28. doi : 10.1080 / 10635150390192726. PMID 12746147. Jump up ^ Wang, Q. ; Yang, C. ( 2013 ). `` The phylogeny of the Cetartiodactyla based on complete mitochondrial genomes ''. International Journal of Biology. 5 ( 3 ) : 30 -- 6. doi : 10.5539 / ijb. v5n3p30. ^ Jump up to : Mitchell, G. ; Skinner, J.D. ( 2003 ). `` On the origin, evolution and phylogeny of giraffes Giraffa camelopardalis ''. Transactions of the Royal Society of South Africa. 58 ( 1 ) : 51 -- 73. doi : 10.1080 / 00359190309519935. ^ Jump up to : Danowitz, M. ; Vasilyev, A. ; Kortlandt, V. ; Solounias, V. ( 2015 ). `` Fossil evidence and stages of elongation of the Giraffa camelopardalis neck ''. Royal Society Open Science. 2 : 150393. doi : 10.1098 / rsos. 150393. ^ Jump up to : Danowitz, M. ; Domalski, R. ; Solounias, N. ( 2015 ). `` The cervical anatomy of Samotherium, an intermediate - necked giraffid ''. Royal Society Open Science. 2 : 150521. doi : 10.1098 / rsos. 150521. Jump up ^ `` Giraffa ( giraffe ) ''. The Paleobiology Database. Retrieved 2016 - 09 - 13. ^ Jump up to : Simmons, R.E. ; Scheepers, L. ( 1996 ). `` Winning by a Neck : Sexual Selection in the Evolution of Giraffe '' ( PDF ). The American Naturalist. 148 ( 5 ) : 771 -- 86. doi : 10.1086 / 285955. Archived from the original ( PDF ) on 23 August 2004. Jump up ^ Janis, Christine M. ( 1993 - 01 - 01 ). `` Tertiary Mammal Evolution in the Context of Changing Climates, Vegetation, and Tectonic Events ''. Annual Review of Ecology and Systematics. 24 : 467 -- 500. doi : 10.1146 / annurev. ecolsys. 24.1. 467. JSTOR 2097187. Jump up ^ Ramstein, Gilles ; Fluteau, Frédéric ; Besse, Jean ; Joussaume, Sylvie ( 1997 - 04 - 24 ). `` Effect of orogeny, plate motion and land -- sea distribution on Eurasian climate change over the past 30 million years ''. Nature. 386 ( 6627 ) : 788 -- 795. doi : 10.1038 / 386788a0. ^ Jump up to : Badlangana, L.N. ; Adams, J.W. ; Manger, P.R. ( 2009 ). `` The giraffe ( Giraffa camelopardalis ) cervical vertebral column : A heuristic example in understanding evolutionary processes ? ''. Zoological Journal of the Linnean Society. 155 ( 3 ) : 736 -- 57. doi : 10.1111 / j. 1096 - 3642.2008. 00458. x. ^ Jump up to : Prothero, D.R. ; Schoch, R.M. ( 2003 ). Horns, Tusks, and Flippers : The Evolution of Hoofed Mammals. Johns Hopkins University Press. pp. 67 -- 72. ISBN 0 - 8018 - 7135 - 2. Jump up ^ Simmons, R.E. ; Altwegg, R. ( 2010 - 09 - 01 ). `` Necks - for - sex or competing browsers ? A critique of ideas on the evolution of giraffe ''. Journal of Zoology. 282 ( 1 ) : 6 -- 12. doi : 10.1111 / j. 1469 - 7998.2010. 00711. x. ISSN 1469 - 7998. Jump up ^ Agaba, M. ; Ishengoma, E. ; Miller, W.C. ; McGrath, B.C. ; Hudson, C.N. ; Bedoya, R.O.C. ; Ratan, A. ; Burhans, R. ; Chikhi, R. ; Medvedev, P. ; Praul C.A. ; Wu - Cavener, L. ; Wood, B. ; Robertson, H. ; Penfold, L. ; Cavener, D.R. ( 2016 ). `` Giraffe genome sequence reveals clues to its unique morphology and physiology ''. Nature Communications. 7 : 11519. doi : 10.1038 / ncomms11519. PMC 4873664. PMID 27187213. ^ Jump up to : Brown, D.M. ; Brenneman R.A. ; Koepfli, K. - P. ; Pollinger, J.P. ; Milá, B. ; Georgiadis, N.J. ; Louis Jr., E.E. ; Grether, G.F. ; Jacobs, D.K. ; Wayne R.K. ( 2007 ). `` Extensive population genetic structure in the giraffe ''. BMC Biology. 5 ( 1 ) : 57. doi : 10.1186 / 1741 - 7007 - 5 - 57. PMC 2254591. PMID 18154651. ^ Jump up to : Linnaeus, Carl ( 1758 ). Systema Naturæ. ^ Jump up to : Muller, Zoe ; et al. ( 2016 ). `` Giraffa camelopardalis ( Giraffe ) ''. www.iucnredlist.org. Retrieved 2017 - 05 - 02. Jump up ^ Russell, Seymour ( 2001 ). `` Patterns of subspecies diversity in the giraffe, Giraffa camelopardalis ( L. 1758 ) : comparison of systematic methods and their implications for conservation policy ''. PhD Thesis, University of Kent at Canterbury. Jump up ^ Lever, A. - M. ( 21 December 2007 ). `` Not one but ' six giraffe species ' ''. BBC News. Retrieved 4 March 2009. ^ Jump up to : Groves, Colin ; Grubb, Peter ( 2011 - 11 - 01 ). Ungulate Taxonomy. JHU Press. ISBN 9781421400938. ^ Jump up to : Fennessy, Julian ; Bidon, Tobias ; Reuss, Friederike ; Kumar, Vikas ; Elkan, Paul ; Nilsson, Maria A. ; Vamberger, Melita ; Fritz, Uwe ; Janke, Axel ( 2016 ). `` Multi-locus Analyses reveal four giraffe species instead of one ''. Current Biology. 26 : 2543 -- 2549. doi : 10.1016 / j. cub. 2016.07. 036. PMID 27618261. Jump up ^ Bercovitch, Fred B. ; Berry, Philip S.M. ; Dagg, Anne ; Deacon, Francois ; Doherty, John B. ; Lee, Derek E. ; Mineur, Frédéric ; Muller, Zoe ; Ogden, Rob ; Seymour, Russell ; Shorrocks, Bryan ; Tutchings, Andy ( 2017 ). `` How many species of giraffe are there ? ''. Current Biology. 27 ( 4 ) : R136 -- R137. doi : 10.1016 / j. cub. 2016.12. 039. ISSN 0960 - 9822. PMID 28222287. ^ Jump up to : `` Giraffa ''. ISIS. 2010. Retrieved 4 November 2010. Jump up ^ Swainson 1835. Camelopardalis antiquorum. Bagger el Homer, Kordofan, about 10 ° N, 28 ° E ( as fixed by Harper, 1940 ) ^ Jump up to : Hassanin, A. ; Ropiquet, A. ; Gourmand, B. - L. ; Chardonnet, B. ; Rigoulet, J. ( 2007 ). `` Mitochondrial DNA variability in Giraffa camelopardalis : consequences for taxonomy, phylogeography and conservation of giraffes in West and central Africa ''. Comptes Rendus Biologies. 330 ( 3 ) : 173 -- 83. doi : 10.1016 / j. crvi. 2007.02. 008. PMID 17434121. ^ Jump up to : Seymour, R. ( 2002 ) The taxonomic status of the giraffe, Giraffa camelopardalis ( L. 1758 ), PH. D Thesis ^ Jump up to : `` Giraffe -- The Facts : Current giraffe status ? ''. Giraffe Conservation Foundation. Retrieved 21 December 2010. Jump up ^ `` Exhibits ''. Al Ain Zoo. 25 February 2003. Archived from the original on 2011 - 11 - 29. Retrieved 21 November 2011. Jump up ^ `` Nubian giraffe born in Al Ain zoo ''. UAE Interact. Archived from the original on 20 March 2012. Retrieved 21 December 2010. ^ Jump up to : Fennessy, J. & Brenneman, R. ( 2010 ). `` Giraffa camelopardalis ssp. rothschildi ''. IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature. Retrieved 2013 - 01 - 26. ^ Jump up to : Fennessy, J. ; Brown, D. ( 2008 ). `` Giraffa camelopardalis ssp. peralta ''. IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature. Retrieved 2013 - 01 - 26. Jump up ^ Thomas 1908. Giraffa camelopardalis peralta Lokojya, Niger -- Benue junction, Nigeria. ^ Jump up to : Kingdon, J. ( 1988 ). East African Mammals : An Atlas of Evolution in Africa, Volume 3, Part B : Large Mammals. University Of Chicago Press. pp. 313 -- 37. ISBN 0 - 226 - 43722 - 1. Jump up ^ Winton, W.E. de ( 1899 - 11 - 01 ). `` XXXVIII. -- On mammals collected by Lieut. - Colonel W. Giffard in the northern territory of the Gold Coast ''. Annals and Magazine of Natural History. 4 ( 23 ) : 353 -- 359. doi : 10.1080 / 00222939908678212. ISSN 0374 - 5481. Jump up ^ Brenneman, R.A. ; Louis, E.E. Jr ; Fennessy, J. ( 2009 ). `` Genetic structure of two populations of the Namibian giraffe, Giraffa camelopardalis angolensis ''. African Journal of Ecology. 47 ( 4 ) : 720 -- 28. doi : 10.1111 / j. 1365 - 2028.2009. 01078. x. Jump up ^ Rookmaaker, L.C. ( 1989 - 06 - 01 ). The Zoological Exploration of Southern Africa 1650 -- 1790. CRC Press. ISBN 9789061918677. Jump up ^ Matschie 1898 Giraffa tippelskirchi. Lake Eyasi, NW Tanzania. ^ Jump up to : Estes, R. ( 1992 ). The Behavior Guide to African Mammals : including Hoofed Mammals, Carnivores, Primates. University of California Press. pp. 202 -- 07. ISBN 0 - 520 - 08085 - 8. ^ Jump up to : Pellow, R.A. ( 2001 ). `` Giraffe and Okapi ''. In MacDonald, D. The Encyclopedia of Mammals ( 2nd ed. ). Oxford University Press. pp. 520 -- 27. ISBN 0 - 7607 - 1969 - 1. ^ Jump up to : Nowak, R.M. ( 1999 ). Giraffe Pages 1086 -- 1089 in Walker 's Mammals of the World. Volume 1. The Johns Hopkins University Press, Baltimore, USA and London, UK. ^ Jump up to : Maisano, Sarah. `` ' ' Giraffa camelopardalis ' ' giraffe ''. Animaldiversity.ummz.umich.edu. ^ Jump up to : Owen - Smith, R.N. 1988. Megaherbivores : The Influence of Very Large Body Size on Ecology. Cambridge : Cambridge University Press. Jump up ^ Dagg, A.I. and J.B. Foster ( 1976 / 1982 ) : The Giraffe. Its Biology, Behavior, and Ecology. Krieger Publishing Company, Malabar, Florida ( Reprint 1982 with updated supplementary material. ) ^ Jump up to : Skinner, J.D. ; Smithers, R.H.M. ( 1990 ). The mammals of the southern African subregion. University of Pretoria. pp. 616 -- 20. ISBN 0 - 521 - 84418 - 5. ^ Jump up to : Swaby, S. ( 2010 ). `` Giraffe ''. In Harris, T. Mammal Anatomy : An Illustrated Guide. Marshall Cavendish. pp. 64 -- 84. ISBN 0 - 7614 - 7882 - 5. ^ Jump up to : Williams, E. ( 2011 ). Giraffe. Reaktion Books. ISBN 1 - 86189 - 764 - 2. ^ Jump up to : Mitchell, G. ; Skinner, J.D. ( 2004 ). `` Giraffe thermoregulation : a review ''. Transactions of the Royal Society of South Africa : Proceedings of a Colloquium on Adaptations in Desert Fauna and Flora. 59 ( 2 ) : 49 -- 57. doi : 10.1080 / 00359190409519170. ISSN 0035 - 919X. Jump up ^ Wood, W.F. ; Weldon, P.J. ( 2002 ). `` The scent of the reticulated giraffe ( Giraffa camelopardalis reticulata ) ''. Biochemical Systematics and Ecology. 30 ( 10 ) : 913 -- 17. doi : 10.1016 / S0305 - 1978 ( 02 ) 00037 - 6. ^ Jump up to : Simmons, R.E. ; Altwegg, R. ( 2010 ). `` Necks - for - sex or competing browsers ? A critique of ideas on the evolution of giraffe ''. Journal of Zoology. 282 ( 1 ) : 6 -- 12. doi : 10.1111 / j. 1469 - 7998.2010. 00711. x. Jump up ^ MacClintock, D. ; Mochi, U. ( 1973 ). A natural history of giraffes. Scribner. p. 30. ISBN 0 - 684 - 13239 - 7. Jump up ^ Wood, C. ( 7 March 2014 ). `` Groovy giraffes... distinct bone structures keep these animals upright ''. Society for Experimental Biology. Retrieved 7 May 2014. Jump up ^ Garland, T ; Janis, C.M. ( 1993 ). `` Does metatarsal / femur ratio predict maximal running speed in cursorial mammals ? '' ( PDF ). Journal of Zoology. 229 ( 1 ) : 133 -- 51. doi : 10.1111 / j. 1469 - 7998.1993. tb02626. x. Jump up ^ Rafferty, John. P ( 2011 ). Grazers ( Britannica Guide to Predators and Prey ). Britannica Educational Publishing. p. 194. ISBN 1 - 61530 - 336 - 7. ^ Jump up to : Tobler, I. ; Schwierin, B. ( 1996 ). `` Behavioural sleep in the giraffe ( Giraffa camelopardalis ) in a zoological garden ''. Journal of Sleep Research. 5 ( 1 ) : 21 -- 32. doi : 10.1046 / j. 1365 - 2869.1996. 00010. x. PMID 8795798. ^ Jump up to : Henderson, D.M. ; Naish, D. ( 2010 ). `` Predicting the buoyancy, equilibrium and potential swimming ability of giraffes by computational analysis ''. Journal of Theoretical Biology. 265 ( 2 ) : 151 -- 59. doi : 10.1016 / j. jtbi. 2010.04. 007. PMID 20385144. ^ Jump up to : Naish, D. ( January 2011 ). `` Will it Float ? ''. Scientific American. 304 ( 1 ) : 22. doi : 10.1038 / scientificamerican0111 - 22. ISSN 0036 - 8733. Jump up ^ Taylor, M.P. ; Wedel, M.J. ( 2013 ). `` Why sauropods had long necks ; and why giraffes have short necks ''. PeerJ. 1 : e36. doi : 10.7717 / peerj. 36. PMC 3628838. PMID 23638372. ^ Jump up to : Van Sittert, S.J. ; Skinner, J.D. ; Mitchell, G. ( 2010 ). `` From fetus to adult -- An allometric analysis of the giraffe vertebral column ''. Journal of Experimental Zoology Part B Molecular and Developmental Evolution. 314B ( 6 ) : 469 -- 79. doi : 10.1002 / jez. b. 21353. ^ Jump up to : Solounias, N. ( 1999 ). `` The remarkable anatomy of the giraffe 's neck '' ( PDF ). Journal of Zoology. 247 ( 2 ) : 257 -- 68. doi : 10.1111 / j. 1469 - 7998.1999. tb00989. x. ^ Jump up to : du Toit, J.T. ( 1990 ). `` Feeding - height stratification among African browsing ruminants '' ( PDF ). African Journal of Ecology. 28 ( 1 ) : 55 -- 62. doi : 10.1111 / j. 1365 - 2028.1990. tb01136. x. Jump up ^ Cameron, E.Z. ; du Toit, J.T. ( 2007 ). `` Winning by a Neck : Tall Giraffes Avoid Competing with Shorter Browsers '' ( PDF ). American Naturalist. 169 ( 1 ) : 130 -- 35. doi : 10.1086 / 509940. PMID 17206591. Archived from the original on 2 October 2013. CS1 maint : BOT : original - url status unknown ( link ) Jump up ^ Woolnough, A.P. ; du Toit, J.T. ( 2001 ). `` Vertical zonation of browse quality in tree canopies exposed to a size - structured guild of African browsing ungulates '' ( PDF ). Oecologia. 129 ( 1 ) : 585 -- 90. doi : 10.1007 / s004420100771. ^ Jump up to : Young, T.P. ; Isbell, L.A. ( 1991 ). `` Sex differences in giraffe feeding ecology : energetic and social constraints '' ( PDF ). Ethology. 87 ( 1 -- 2 ) : 79 -- 89. doi : 10.1111 / j. 1439 - 0310.1991. tb01190. x. Jump up ^ Mitchell, G. ; van Sittert, S. ; Skinner, J.D. ( 2010 ). `` The demography of giraffe deaths in a drought ''. Transactions of the Royal Society of South Africa. 65 ( 3 ) : 165 -- 68. doi : 10.1080 / 0035919X. 2010.509153. Jump up ^ Mitchell, G. ; van Sittert, S.J. ; Skinner, J.D. ( 2009 ). `` Sexual selection is not the origin of long necks in giraffes ''. Journal of Zoology. 278 ( 4 ) : 281 -- 86. doi : 10.1111 / j. 1469 - 7998.2009. 00573. x. Jump up ^ Brownlee, A. ( 1963 ). `` Evolution of the Giraffe ''. Nature. 200 : 1022. doi : 10.1038 / 2001022a0. Jump up ^ Williams, Edgar M. ( 2016 ). `` Giraffe Stature and Neck Elongation : Vigilance as an Evolutionary Mechanism ''. Biology. 5 ( 3 ) : 35. doi : 10.3390 / biology5030035. PMC 5037354. PMID 27626454. ^ Jump up to : Wedel, M.J. ( 2012 ). `` A monument of inefficiency : the presumed course of the recurrent laryngeal nerve in sauropod dinosaurs '' ( PDF ). Acta Palaeontologica Polonica. 57 ( 2 ) : 251 -- 56. doi : 10.4202 / app. 2011.0019. Jump up ^ Harrison, D.F.N. ( 1995 ). The Anatomy and Physiology of the Mammalian Larynx. Cambridge University Press. p. 165. ISBN 0 - 521 - 45321 - 6. Jump up ^ Skinner, J.D. ; Mitchell, G. ( 2011 ). `` Lung volumes in giraffes, Giraffa camelopardalis '' ( PDF ). Comparative Biochemistry and Physiology A. 158 ( 1 ) : 72 -- 78. doi : 10.1016 / j. cbpa. 2010.09. 003. Jump up ^ Mitchell, G. ; Skinner, J.D. ( 1993 ). `` How giraffe adapt to their extraordinary shape ''. Transactions of the Royal Society of South Africa. 48 ( 2 ) : 207 -- 18. doi : 10.1080 / 00359199309520271. Jump up ^ Mitchell, G. ; van Sittert, S.J. ; Skinner, J.D. ( 2009 ). `` The structure and function of giraffe jugular vein valves '' ( PDF ). South African Journal of Wildlife Research. 39 ( 2 ) : 175 -- 80. doi : 10.3957 / 056.039. 0210. Jump up ^ Pérez, W. ; Lima, M. ; Clauss, M. ( 2009 ). `` Gross anatomy of the intestine in the giraffe ( Giraffa camelopardalis ) ''. Anatomia, Histologia, Embryologia. 38 ( 6 ) : 432 -- 35. doi : 10.1111 / j. 1439 - 0264.2009. 00965. x. PMID 19681830. Jump up ^ Cave, A.J.E. ( 1950 ). `` On the liver and gall - bladder of the Giraffe ''. Proceedings of the Zoological Society of London. 120 ( 2 ) : 381 -- 93. doi : 10.1111 / j. 1096 - 3642.1950. tb00956. x. Jump up ^ Oldham - Ott, Carla K. ; Gilloteaux, Jacques ( 1997 ). `` Comparative morphology of the gallbladder and biliary tract in vertebrates : variation in structure, homology in function and gallstones ''. Microscopy Research and Technique. 38 ( 6 ) : 571 -- 79. doi : 10.1002 / ( SICI ) 1097 - 0029 ( 19970915 ) 38 : 6 < 571 : : AID - JEMT3 > 3.0.CO ; 2 - I. Jump up ^ Fennessy, J. ( 2004 ). Ecology of desert - dwelling giraffe Giraffa camelopardalis angolensis in northwestern Namibia ( Ph. D. thesis ). University of Sydney. Jump up ^ van der Jeugd, H.P. ; Prins, H.H.T. ( 2000 ). `` Movements and group structure of giraffe ( Giraffa camelopardalis ) in Lake Manyara National Park, Tanzania '' ( PDF ). Journal of Zoology. 251 ( 1 ) : 15 -- 21. doi : 10.1111 / j. 1469 - 7998.2000. tb00588. x. Archived from the original ( PDF ) on 24 April 2012. ^ Jump up to : Pratt D.M. ; Anderson V.H. ( 1985 ). `` Giraffe social behavior ''. Journal of Natural History. 19 ( 4 ) : 771 -- 81. doi : 10.1080 / 00222938500770471. Jump up ^ Bercovitch, F.B. ; Berry, P.S.M. ( 2013 ). `` Herd composition, kinship and fission -- fusion social dynamics among wild giraffe ''. African Journal of Ecology. 51 ( 2 ) : 206 -- 216. doi : 10.1111 / aje. 12024. ^ Jump up to : Carter, K.D. ; Seddon, J.M. ; Frèreb, C.H. ; Carter, J.K. ( 2013 ). `` Fission -- fusion dynamics in wild giraffes may be driven by kinship, spatial overlap and individual social preferences ''. Animal Behaviour. 85 ( 2 ) : 385 -- 394. doi : 10.1016 / j. anbehav. 2012.11. 011. ^ Jump up to : VanderWaal, K.L. ; Wang, H. ; McCowan, B. ; Fushing, H. ; Isbell, L.A. ( 2014 ). `` Multilevel social organization and space use in reticulated giraffe ( Giraffa camelopardalis ) '' ( PDF ). Behavioral Ecology. 25 ( 1 ) : 17 -- 26. doi : 10.1093 / beheco / art061. ^ Jump up to : Leuthold, B.M. ( 1979 ). `` Social organization and behaviour of giraffe in Tsavo East National Park ''. African Journal of Ecology. 17 ( 1 ) : 19 -- 34. doi : 10.1111 / j. 1365 - 2028.1979. tb00453. x. ^ Jump up to : Baotic, A. ; Sicks, F. ; Stoeger, A.S. ( 2015 ). `` Nocturnal `` humming '' vocalizations : adding a piece to the puzzle of giraffe vocal communication ``. BMC Research Notes. 8 : 425. doi : 10.1186 / s13104 - 015 - 1394 - 3. PMC 4565008. PMID 26353836. Jump up ^ `` Silent Sentinels ? ''. PBS online -- Nature. Retrieved 21 December 2011. Jump up ^ `` Mammal Guide -- Giraffe ''. Animal Planet. Archived from the original on 2009 - 02 - 04. Retrieved 7 March 2009. ^ Jump up to : Langman, V.A. ( 1977 ). `` Cow - calf relationships in giraffe ( Giraffa camelopardalis giraffa ) ''. Zeitschrift für Tierpsychologie. 43 ( 3 ) : 264 -- 86. doi : 10.1111 / j. 1439 - 0310.1977. tb00074. x. Jump up ^ Hall - Martin A.J., Skinner J.D., Hopkins B.J. ( 1978 ). `` The development of the reproductive organs of the male giraffe, Giraffa camelopardalis '' ( PDF ). Journal of reproduction and fertility. 52 ( 1 ) : 1 -- 7. doi : 10.1530 / jrf. 0.0520001. CS1 maint : Multiple names : authors list ( link ) Jump up ^ Coe, M.J. ( 1967 ). `` ' Necking ' behavior in the giraffe ''. Journal of Zoology. 151 ( 2 ) : 313 -- 21. doi : 10.1111 / j. 1469 - 7998.1967. tb02117. x. Jump up ^ Bagemihl, B. ( 1999 ). Biological Exuberance : Animal Homosexuality and Natural Diversity. St. Martin 's Press. pp. 391 -- 93. ISBN 0 - 312 - 19239 - 8. ^ Jump up to : Lee, D.E. ; Strauss, M.K. L ( 2016 - 01 - 01 ). Reference Module in Earth Systems and Environmental Sciences. Elsevier. ISBN 9780124095489. Jump up ^ Müller, DW ; Zerbe, P ; Codron, D ; Clauss, M ; Hatt, JM ( 2011 ). `` A long life among ruminants : giraffids and other special cases ''. Schweizer Archiv für Tierheilkunde. 153 ( 11 ) : 515 -- 519. doi : 10.1024 / 0036 - 7281 / a000263. PMID 22045457. Jump up ^ Hayward, Matt W. ; Kerley, Graham ( 2005 ). `` Prey preferences of the lion ( Panthera leo ) '' ( PDF ). Journal of Zoology. 267 ( 3 ) : 309 -- 22. doi : 10.1017 / S0952836905007508. Jump up ^ Owen - Smith, N. ; Mills, M.G. ( 2008 ). `` Predator - prey size relationships in an African large - mammal food web '' ( PDF ). Journal of Animal Ecology. 77 ( 1 ) : 173 -- 83. doi : 10.1111 / j. 1365 - 2656.2007. 01314. x. PMID 18177336. Jump up ^ Lee, Derek E. ; Bond, Monica L. ; Kissui, Bernard M. ; Kiwango, Yustina A. ; Bolger, Douglas T. ( 2016 - 05 - 11 ). `` Spatial variation in giraffe demography : a test of 2 paradigms ''. Journal of Mammalogy. 97 : gyw086. doi : 10.1093 / jmammal / gyw086. ISSN 0022 - 2372. Jump up ^ Lee, Derek Edward ; Bond, Monica Louise ; Bolger, Douglas Thomas ( 2017 - 01 - 01 ). `` Season of birth affects juvenile survival of giraffe ''. Population Ecology. 59 ( 1 ) : 45 -- 54. doi : 10.1007 / s10144 - 017 - 0571 - 8. ISSN 1438 - 3896. Jump up ^ Lee, Derek E. ; Kissui, Bernard M. ; Kiwango, Yustina A. ; Bond, Monica L. ( 2016 ). `` Migratory herds of wildebeests and zebras indirectly affect calf survival of giraffes ''. Ecology and Evolution. doi : 10.1002 / ece3. 2561. ISSN 2045 - 7758. Jump up ^ Lee, Derek E. ; Bond, Monica L. ( 2016 - 07 - 26 ). `` The Occurrence and Prevalence of Giraffe Skin Disease in Protected Areas of Northern Tanzania ''. Journal of Wildlife Diseases. 52 ( 3 ) : 753 -- 755. doi : 10.7589 / 2015 - 09 - 247. Jump up ^ Bond, Monica L. ; Strauss, Megan K.L. ; Lee, Derek E. ( 2016 - 08 - 16 ). `` Soil Correlates and Mortality from Giraffe Skin Disease in Tanzania ''. Journal of Wildlife Diseases. 52 : 953 -- 958. doi : 10.7589 / 2016 - 02 - 047. ISSN 0090 - 3558. Jump up ^ Muneza, Arthur B. ; Montgomery, Robert A. ; Fennessy, Julian T. ; Dickman, Amy J. ; Roloff, Gary J. ; Macdonald, David W. ( 2016 - 06 - 01 ). `` Regional variation of the manifestation, prevalence, and severity of giraffe skin disease : A review of an emerging disease in wild and captive giraffe populations ''. Biological Conservation. 198 : 145 -- 156. doi : 10.1016 / j. biocon. 2016.04. 014. Jump up ^ Ross, K. ( 2003 ). Okavango : jewel of the Kalahari. Struik. p. 168. ISBN 1 - 86872 - 729 - 7. Jump up ^ Greaves, N. ; Clement, R. ( 2000 ). When Hippo Was Hairy : And Other Tales from Africa. Struik. pp. 86 -- 88. ISBN 1 - 86872 - 456 - 5. Jump up ^ `` The Dabous Giraffe rock art petrograph ''. The Bradshaw Foundation. Retrieved 6 November 2011. Jump up ^ Ringmar, E. ( 2006 ). `` Audience for a Giraffe : European Expansionism and the Quest for the Exotic '' ( PDF ). Journal of World History. 17 ( 4 ) : 353 -- 97. doi : 10.1353 / jwh. 2006.0060. JSTOR 20079397. Jump up ^ Walter, M. ; Fournier, A. ; Menevaux, D. ( 2001 ). `` Integrating shape and pattern in mammalian models in SIGGRAPH ' 01 '' ( PDF ). Proceedings of the 28th annual conference on Computer graphics and interactive techniques : 317 -- 26. doi : 10.1145 / 383259.383294. ISBN 1 - 58113 - 374 - X. Jump up ^ Clegg, A. ( 1986 ). `` Some Aspects of Tswana Cosmology ''. Botswana Notes and Records. 18 : 33 -- 37. JSTOR 40979758. Jump up ^ Ian Cunnison ( 1958 ). `` Giraffe hunting among the Humr tribe ''. Sudan Notes and Records. 39. Jump up ^ `` 6 Animals That Can Get You High ''. Jump up ^ Qiu, Jane ( 22 June 2017 ). `` Surge in wildlife killings is wiping out giraffes ''. Science. doi : 10.1126 / science. aan7000. ^ Jump up to : Lee, Derek E. ; Bond, Monica L. ( 2016 - 06 - 09 ). `` Precision, accuracy, and costs of survey methods for giraffe Giraffa camelopardalis ''. Journal of Mammalogy. 97 ( 3 ) : 940 -- 948. doi : 10.1093 / jmammal / gyw025. ISSN 0022 - 2372. Jump up ^ Lord. M ( 11 January 2012 ). `` Outlandish Outposts : Giraffe Manor in Kenya ''. Forbes.com. Retrieved 4 April 2012. Jump up ^ Knappert, J ( 1987 ). East Africa : Kenya, Tanzania & Uganda. Vikas Publishing House. p. 57. ISBN 0 - 7069 - 2822 - 9. Jump up ^ Charles Foley ; Lara Foley ; Alex Lobora ; Daniela De Luca ; Maurus Msuha ; Tim R.B. Davenport ; Sarah M. Durant ( 8 June 2014 ). A Field Guide to the Larger Mammals of Tanzania. Princeton University Press. pp. 179 --. ISBN 978 - 1 - 4008 - 5280 - 2. Jump up ^ `` National Symbols : National Animal ''. tanzania.go.tz. Tanzania Government Portal. Retrieved 14 January 2015. Jump up ^ `` Chimpanzees among 33 breeds selected for special protection ''. BBC. 28 October 2017. Retrieved 30 October 2017. Jump up ^ Matt McGrath ( 8 December 2016 ). `` Giraffes facing ' silent extinction ' as population plunges ''. BBC News. Retrieved 8 December 2016. Jump up ^ `` New bird species and giraffe under threat -- IUCN Red List ''. External links Wikimedia Commons has media related to Giraffa. ARKive -- images and movies of the giraffe ( Giraffa camelopardalis ). Giraffe, African Wildlife Foundation Giraffa camelopardalis, Encyclopedia of Life Giraffe fight on YouTube from BBC 's Africa series Extant Artiodactyla species Kingdom : Animalia Phylum : Chordata Class : Mammalia Infraclass : Eutheria Superorder : Laurasiatheria Suborder Ruminantia Antilocapridae Antilocapra Pronghorn ( A. americana ) Giraffidae Okapia Okapi ( O. johnstoni ) Giraffa Northern giraffe ( G. camelopardalis ) Southern giraffe ( G. giraffa ) Reticulated giraffe ( G. reticulata ) Masai giraffe ( G. tippelskirchi ) Moschidae Moschus Anhui musk deer ( M. anhuiensis ) Dwarf musk deer ( M. berezovskii ) Alpine musk deer ( M. chrysogaster ) Kashmir musk deer ( M. cupreus ) Black musk deer ( M. fuscus ) Himalayan musk deer ( M. leucogaster ) Siberian musk deer ( M. moschiferus ) Tragulidae Hyemoschus Water chevrotain ( H. aquaticus ) Moschiola Indian spotted chevrotain ( M. indica ) Yellow - striped chevrotain ( M. kathygre ) Sri Lankan spotted chevrotain ( M. meminna ) Tragulus Java mouse - deer ( T. javanicus ) Lesser mouse - deer ( T. kanchil ) Greater mouse - deer ( T. napu ) Philippine mouse - deer ( T. nigricans ) Vietnam mouse - deer ( T. versicolor ) Williamson 's mouse - deer ( T. williamsoni ) Cervidae Large family listed below Bovidae Large family listed below Family Cervidae Cervinae Muntiacus Indian muntjac ( M. muntjak ) Reeves 's muntjac ( M. reevesi ) Hairy - fronted muntjac ( M. crinifrons ) Fea 's muntjac ( M. feae ) Bornean yellow muntjac ( M. atherodes ) Roosevelt 's muntjac ( M. rooseveltorum ) Gongshan muntjac ( M. gongshanensis ) Giant muntjac ( M. vuquangensis ) Truong Son muntjac ( M. truongsonensis ) Leaf muntjac ( M. putaoensis ) Sumatran muntjac ( M. montanus ) Pu Hoat muntjac ( M. puhoatensis ) Elaphodus Tufted deer ( E. cephalophus ) Dama Fallow deer ( D. dama ) Persian fallow deer ( D. mesopotamica ) Axis Chital ( A. axis ) Rucervus Barasingha ( R. duvaucelii ) Panolia Eld 's deer ( P. eldii ) Elaphurus Père David 's deer ( E. davidianus ) Hyelaphus Hog deer ( H. porcinus ) Calamian deer ( H. calamianensis ) Bawean deer ( H. kuhlii ) Rusa Sambar deer ( R. unicolor ) Rusa deer ( R. timorensis ) Philippine sambar ( R. mariannus ) Philippine spotted deer ( R. alfredi ) Cervus Red deer ( C. elaphus ) Elk ( C. canadensis ) Thorold 's deer ( C. albirostris ) Sika deer ( C. nippon ) Capreolinae Alces Moose ( A. alces ) Hydropotes Water deer ( H. inermis ) Capreolus Roe deer ( C. capreolus ) Siberian roe deer ( C. pygargus ) Rangifer Reindeer ( R. tarandus ) Hippocamelus Taruca ( H. antisensis ) South Andean deer ( H. bisulcus ) Mazama Red brocket ( M. americana ) Small red brocket ( M. bororo ) Merida brocket ( M. bricenii ) Dwarf brocket ( M. chunyi ) Gray brocket ( M. gouazoubira ) Pygmy brocket ( M. nana ) Amazonian brown brocket ( M. nemorivaga ) Yucatan brown brocket ( M. pandora ) Little red brocket ( M. rufina ) Central American red brocket ( M. temama ) Ozotoceros Pampas deer ( O. bezoarticus ) Blastocerus Marsh deer ( B. dichotomus ) Pudu Northern pudú ( P. mephistophiles ) Southern pudú ( P. pudu ) Odocoileus White - tailed deer ( O. virginianus ) Mule deer ( O. hemionus ) Family Bovidae Cephalophinae Cephalophus Abbott 's duiker ( C. spadix ) Aders 's duiker ( C. adersi ) Bay duiker ( C. dorsalis ) Black duiker ( C. niger ) Black - fronted duiker ( C. nigrifrons ) Brooke 's duiker ( C. brookei ) Harvey 's duiker ( C. harveyi ) Jentink 's duiker ( C. jentinki ) Ogilby 's duiker ( C. ogilbyi ) Peters 's duiker ( C. callipygus ) Red - flanked duiker ( C. rufilatus ) Red forest duiker ( C. natalensis ) Ruwenzori duiker ( C. rubidis ) Weyns 's duiker ( C. weynsi ) White - bellied duiker ( C. leucogaster ) White - legged duiker ( C. crusalbum ) Yellow - backed duiker ( C. Sylvicultor ) Zebra duiker ( C. zebra ) Philantomba Blue duiker ( P. monticola ) Maxwell 's duiker ( P. maxwellii ) Walter 's duiker ( P. walteri ) Sylvicapra Common duiker ( S. grimmia ) Hippotraginae Hippotragus Roan antelope ( H. equinus ) Sable antelope ( H. niger ) Oryx East African oryx ( O. beisa ) Scimitar oryx ( O. dammah ) Gemsbok ( O. gazella ) Arabian oryx ( O. leucoryx ) Addax Addax ( A. nasomaculatus ) Reduncinae Kobus Upemba lechwe ( K. anselli ) Waterbuck ( K. ellipsiprymnus ) Kob ( K. kob ) Lechwe ( K. leche ) Nile lechwe ( K. megaceros ) Puku ( K. vardonii ) Redunca Southern reedbuck ( R. arundinum ) Mountain reedbuck ( R. fulvorufula ) Bohor reedbuck ( R. redunca ) Aepycerotinae Aepyceros Impala ( A. melampus ) Peleinae Pelea Grey rhebok ( P. capreolus ) Alcelaphinae Beatragus Hirola ( B. hunteri ) Damaliscus Topi ( D. korrigum ) Common tsessebe ( D. lunatus ) Bontebok ( D. pygargus ) Bangweulu tsessebe ( D. superstes ) Alcelaphus Hartebeest ( A. buselaphus ) Red hartebeest ( A. caama ) Lichtenstein 's hartebeest ( A. lichtensteinii ) Connochaetes Black wildebeest ( C. gnou ) Blue wildebeest ( C. taurinus ) Pantholopinae Pantholops Tibetan antelope ( P. hodgsonii ) Caprinae Large subfamily listed below Bovinae Large subfamily listed below Antilopinae Large subfamily listed below Family Bovidae ( subfamily Caprinae ) Ammotragus Barbary sheep ( A. lervia ) Budorcas Takin ( B. taxicolor ) Capra Wild goat ( C. aegagrus ) Domestic goat ( C. aegagrus hircus ) West Caucasian tur ( C. caucasia ) East Caucasian tur ( C. cylindricornis ) Markhor ( C. falconeri ) Alpine ibex ( C. ibex ) Nubian ibex ( C. nubiana ) Spanish ibex ( C. pyrenaica ) Siberian ibex ( C. sibirica ) Walia ibex ( C. walie ) Capricornis Japanese serow ( C. crispus ) Taiwan serow ( C. swinhoei ) Sumatran serow ( C. sumatraensis ) Mainland serow ( C. milneedwardsii ) Red serow ( C. rubidusi ) Himalayan serow ( C. thar ) Hemitragus Nilgiri tahr ( H. hylocrius ) Arabian tahr ( H. jayakari ) Himalayan tahr ( H. jemlahicus ) Naemorhedus Red goral ( N. baileyi ) Long - tailed goral ( N. caudatus ) Himalayan goral ( N. goral ) Chinese goral ( N. griseus ) Oreamnos Mountain goat ( O. americanus ) Ovibos Muskox ( O. moschatus ) Ovis Argali ( O. ammon ) Domestic sheep ( O. aries ) Bighorn sheep ( O. canadensis ) Dall sheep ( O. dalli ) Mouflon ( O. musimon ) Snow sheep ( O. nivicola ) Urial ( O. orientalis ) Pseudois Bharal ( P. nayaur ) Dwarf blue sheep ( P. schaeferi ) Rupicapra Pyrenean chamois ( R. pyrenaica ) Chamois ( R. rupicapra ) Family Bovidae ( subfamily Bovinae ) Boselaphini Tetracerus Four - horned antelope ( T. quadricornis ) Boselaphus Nilgai ( B. tragocamelus ) Bovini Bubalus Water buffalo ( B. bubalis ) Wild Water Buffalo ( B. arnee ) Lowland anoa ( B. depressicornis ) Mountain anoa ( B. quarlesi ) Tamaraw ( B. mindorensis ) Bos Banteng ( B. javanicus ) Gaur ( B. gaurus ) Gayal ( B. frontalis ) Domestic yak ( B. grunniens ) Wild yak ( B. mutus ) Cattle ( B. taurus ) Kouprey ( B. sauveli ) Pseudonovibos Kting voar ( P. spiralis ) Pseudoryx Saola ( P. nghetinhensis ) Syncerus African buffalo ( S. caffer ) Bison American bison ( B. bison ) European bison ( B. bonasus ) Tragelaphini Tragelaphus ( including kudus ) Sitatunga ( T. spekeii ) Nyala ( T. angasii ) Kéwel ( T. scriptus ) Cape bushbuck ( T. sylvaticus ) Mountain nyala ( T. buxtoni ) Lesser kudu ( T. imberbis ) Greater kudu ( T. strepsiceros ) Bongo ( T. eurycerus ) Taurotragus Common eland ( T. oryx ) Giant eland ( T. derbianus ) Family Bovidae ( subfamily Antilopinae ) Antilopini Ammodorcas Dibatag ( A. clarkei ) Antidorcas Springbok ( A. marsupialis ) Antilope Blackbuck ( A. cervicapra ) Eudorcas Mongalla gazelle ( E. albonotata ) Red - fronted gazelle ( E. rufifrons ) Thomson 's gazelle ( E. thomsonii ) Heuglin 's gazelle ( E. tilonura ) Gazella Mountain gazelle ( G. gazella ) Neumann 's gazelle ( G. erlangeri ) Speke 's gazelle ( G. spekei ) Dorcas gazelle ( G. dorcas ) Chinkara ( G. bennettii ) Cuvier 's gazelle ( G. cuvieri ) Rhim gazelle ( G. leptoceros ) Goitered gazelle ( G. subgutturosa ) Litocranius Gerenuk ( L. walleri ) Nanger Dama gazelle ( N. dama ) Grant 's gazelle ( N. granti ) Soemmerring 's gazelle ( N. soemmerringii ) Procapra Mongolian gazelle ( P. gutturosa ) Goa ( P. picticaudata ) Przewalski 's gazelle ( P. przewalskii ) Saigini Pantholops Tibetan antelope ( P. hodgsonii ) Saiga Saiga antelope ( S. tatarica ) Neotragini Dorcatragus Beira ( D. megalotis ) Madoqua Günther 's dik - dik ( M. guentheri ) Kirk 's dik - dik ( M. kirkii ) Silver dik - dik ( M. piacentinii ) Salt 's dik - dik ( M. saltiana ) Neotragus Bates 's pygmy antelope ( N. batesi ) Suni ( N. moschatus ) Royal antelope ( N. pygmaeus ) Oreotragus Klipspringer ( O. oreotragus ) Ourebia Oribi ( O. ourebi ) Raphicerus Steenbok ( R. campestris ) Cape grysbok ( R. melanotis ) Sharpe 's grysbok ( R. sharpei ) Suborder Suina Suidae Babyrousa Buru babirusa ( B. babyrussa ) North Sulawesi babirusa ( B. celebensis ) Togian babirusa ( B. togeanensis ) Hylochoerus Giant forest hog ( H. meinertzhageni ) Phacochoerus Desert warthog ( P. aethiopicus ) Common warthog ( P. africanus ) Porcula Pygmy hog ( P. salvania ) Potamochoerus Bushpig ( P. larvatus ) Red river hog ( P. porcus ) Sus ( Pigs ) Palawan bearded pig ( S. ahoenobarbus ) Bornean bearded pig ( S. barbatus ) Indo - chinese warty pig ( S. bucculentus ) Visayan warty pig ( S. cebifrons ) Celebes warty pig ( S. celebensis ) Flores warty pig ( S. heureni ) Oliver 's warty pig ( S. oliveri ) Philippine warty pig ( S. philippensis ) Wild boar ( S. scrofa ) Timor warty pig ( S. timoriensis ) Javan warty pig ( S. verrucosus ) Tayassuidae Tayassu White - lipped peccary ( T. pecari ) Catagonus Chacoan peccary ( C. wagneri ) Pecari Collared peccary ( P. tajacu ) Giant peccary ( P. maximus ) Suborder Tylopoda Camelidae Lama Llama ( L. glama ) Guanaco ( L. guanicoe ) Vicugna Vicuña ( V. vicugna ) Alpaca ( V. pacos ) Camelus Dromedary ( C. dromedarius ) Bactrian camel ( C. bactrianus ) Wild Bactrian camel ( C. ferus ) Whippomorpha ( unranked clade ) Hippopotamidae Hippopotamus Hippopotamus ( H. amphibius ) Choeropsis Pygmy hippopotamus ( C. liberiensis ) Heraldry Armiger Law of heraldic arms Grant of arms Blazon Officers and officials Authorities Officers of arms King of Arms, Herald, Pursuivant Private Officer of Arms Conventional elements of coats of arms Escutcheon Chief Field ( Tincture ) Division Supporter Supporter Slogan ( battle cry ) Crest Torse Mantling Helmet / Galero Crown / Coronet Compartment Order Ordinaries Charges Motto Dexter Sinister ( right ) ( left ) Types of coats of arms National coat of arms Arms of dominion Ecclesiastical heraldry Burgher arms Civic heraldry Canting arms Attributed arms Heraldic achievement Escutcheon ( shield ) Field Divisions Variations Charge Chief Lines Ordinary Augmentation of honour Cadency Marshalling Quartering Impalement Pale Bar Bend Bordure Canton Chevron Cross Fess Flaunch Gyron Label Lozenge Orle Pall Roundel Saltire Creatures Beasts Bear Boar Bull / Ox Dog / Hound Camelopard ( giraffe ) Hind / Stag ( deer ) Kangaroo Leopard Lion Wolf Birds Cock Dove Eagle Martlet Pelican Rook Sea creatures Dolphin Ged Seahorse Lucy ( esox ) Scallop Legendary creatures Allocamelus Alphyn Basilisk Biscione Chollima Cockatrice Dragon Enfield Garuda Griffin / Keythong Harpy Konrul Lampago Lindworm Manticore Mermaid Pantheon Panther Pegasus Phoenix Salamander Hippocampus Hippogriff Sea - lion Turul Tyger Unicorn Wyvern Yale Others Bat Bee Crapaudy ( toad ) Emmet ( ant ) Serpent Knots Bourchier knot Bowen knot Cavendish knot Dacre knot Harrington knot Hastings knot Heneage knot Hinckaert knot Hungerford knot Lacy knot Medici knot Morvillier knot Ormonde knot Savoy knot Shakespeare knot Stafford knot Trafford knot Tristram knot Wake knot Tinctures Rules Tricking Hatching Metals Argent ( white ) Or ( gold ) Colours Gules ( red ) Sable ( black ) Azure ( blue ) Vert ( green ) Purpure ( purple ) Furs Ermines Erminois Erminites Pean Vair Potent Stains Murrey ( mulberry ) Sanguine ( blood red ) Tenné Non-traditional Metals Copper Colours Bleu - celeste Carnation Cendrée Orange Rose External Crowns and coronets Crest Compartment Helmet Mantling Motto Supporter Torse Mantle and pavilion See also List of oldest heraldry Heraldic flag ( Banner of arms ) Heraldic badge Women in heraldry Socialist heraldry Vexillology Non-traditional, rarely used traditions in italic ( typically regional or modern, considered unheraldic by some ) Heraldry portal Portal : Heraldry / Web resources Taxon identifiers Wd : Q862089 EoL : 38813 EPPO : 1GIRFG GBIF : 2441204 IRMNG : 1291817 ITIS : 898184 MSW : 14200475 NCBI : 9893 NARA : 10645771 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Giraffe&oldid=842176372 '' Categories : IUCN Red List vulnerable species Giraffes Herbivorous mammals Mammals of Africa Mammal genera Vulnerable animals Vulnerable biota of Africa National symbols of Tanzania Mammals described in 1758 Taxa named by Carl Linnaeus Hidden categories : All articles with dead external links Articles with dead external links from September 2017 Articles with permanently dead external links CS1 : Julian -- Gregorian uncertainty CS1 maint : BOT : original - url status unknown CS1 maint : Multiple names : authors list Articles with short description Wikipedia indefinitely semi-protected pages Use dmy dates from May 2015 Articles with ' species ' microformats Commons category with local link different than on Wikidata Articles with hAudio microformats Articles containing potentially dated statements from 2010 All articles containing potentially dated statements Articles needing more detailed references Featured articles Articles containing video clips Talk View source Contents About Wikipedia Wikispecies Català Čeština Deutsch Español Esperanto فارسی Français Galego 한국어 Italiano עברית Kurdî Latviešu Nederlands 日本 語 Polski Русский Slovenčina Svenska ไทย Українська Tiếng Việt 中文 Lingua Franca Nova 15 more Edit links This page was last edited on 20 May 2018, at 19 : 13. 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Question: what is the population of giraffes in africa
Answer: 97,500