Legs lack any markings below the knees and hocks. Reticulated Considered a full species by many. Large bony protuberances on forehead. This is especially well marked in the Baringo old males often have two more posterior horns, small horns immediately behind the main pair, thus giving the giraffe a set of five horns. The horns are called ossicones.
Male horns are larger than female.
Females and young males have hair on top because males use their horns to fight and the hair is usually rubbed off the ends. Contrary to general belief, giraffes are not voiceless, but are in fact able to utter low moans and snorts. But noises apparently are not much used to communicate with each other. Hearing is acute, sight excellent, but the acuteness of the sense of smell is questionable. They have a wondernet below the brain which expands and reduces pressure when the giraffe puts its head down.