A species of baboon in the family CERCOPITHECIDAE, often used as an animal model for cognitive studies.

A genus of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, consisting of five named species: PAPIO URSINUS (chacma baboon), PAPIO CYNOCEPHALUS (yellow baboon), PAPIO PAPIO (western baboon), PAPIO ANUBIS (or olive baboon), and PAPIO HAMADRYAS (hamadryas baboon). Members of the Papio genus inhabit open woodland, savannahs, grassland, and rocky hill country. Some authors consider MANDRILLUS a subgenus of Papio.

A species of baboon in the family CERCOPITHECIDAE with a somewhat different social structure than PAPIO HAMADRYAS. They inhabit several areas in Africa south of the Sahara.

A species of baboon in the family CERCOPITHECIDAE, which has a well-studied trilevel social structure consisting of troops, bands, and clans.

A species of baboon in the family CERCOPITHECIDAE found in southern equatorial and east Africa. They are smaller than PAPIO ANUBIS and have a thinner mane.

A species of baboon in the family CERCOPITHECIDAE found in southern Africa. They are dark colored and have a variable social structure.

A genus of Old World monkeys of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, that inhabits the mountainous regions of Ethiopia. The genus consists of only one species, Theropithecus gelada.

A subfamily of the Old World monkeys, CERCOPITHECIDAE. They inhabit the forests and savannas of Africa. This subfamily contains the following genera: CERCOCEBUS; CERCOPITHECUS; ERYTHROCEBUS; MACACA; PAPIO; and THEROPITHECUS.