MorphologyRead full entry
Stump-tailed macaques, also known as bear macaques, have shaggy, dark brown hair covering them. They have hairless faces with red skin which darkens with sun exposure. Infants are born with white hair that darkens as they age. As they age, adult males and females show balding on the tops of their heads, much like human males, receding from the forehead towards the back of the skull. As in all other cercopithecines, they have cheek pouches that they use to store food when foraging. They are terrestrial quadrupedal movers.
Stump-tailed macaques have hairless tails that are shorter than other g.Macaca species. Tail length ranges from 3.2 to 69 mm. This species is sexually dimorphic in many aspects of their physiology. Males are larger, ranging from 9.9 to 10.2 kg and 517 to 650 mm in height whereas females are 7.5 to 9.1 kg and 485 to 585 mm in height. Males also have much larger canines, which they use for asserting dominance within their group. Like all cercopithecids, they have a dental formula of: 2/2, 1/1, 2/2, 3/3.
Range mass: 7.5 to 10.2 kg.
Range length: 485 to 650 mm.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry
Sexual Dimorphism: male larger