Orangs have a shaggy coat of long , coarse , reddish brown hair . Adult males also have reddish blond beards and mustaches , well-developed cheek pads that extend outward from the sides of the face , and a large throat pouch that is used as a sound resonater to reinforce certain calls . Males are larger than females weighing around 75kg . Females weigh around 40kg . The orang's arms are very long and reach to the ankles when the animal stands erect .
Orangs live in trees where they obtain their food and sleep .
They live in small groups of two to four animals , but adult males may be solitary . Humans are the orangs' only enemy , and unless hunting and destruction of their forest homes are curtailed , and not merely made illegal , orangs will soon be extinct . Researched by Emma Teehan. There are 32 species of dolphins. The dolphins are closely related to the whale family.