Face is long with somewhat elongated snout and prominent brow and nasal ridges. Coat is black. There is a conspicuous crest of long hair on top of head in both sexes.
Females have cyclic pink perineal swelling.
Young are born with eyes closed, but they open in about 2 hrs. Infants cling to mother's belly and nurse for 1 yr. Special Physical Adaptations Stands upright but walks on all four limbs. Powerful jaws with 32 teeth, arranged to give a nutcracker effect between back teeth. Cheek pouches can hold about one stomach-sized amount of food.