Papio

Papio is a genus of Old World monkeys, family Cercopithecidae, tribe Papionini, order Primates, commonly known as baboons and existing for at least two million years as among the largest non-hominoid primates. Six species are currently recognized, each native to one of six regions of Africa, with the hamadryas baboon additionally found on part of the Arabian Peninsula; the other species are the Guinea, olive, yellow, Kinda and chacma baboons. Baboons share long, dog-like muzzles, heavy jaws with sharp canine teeth, close-set eyes, thick fur except on the muzzle, short tails, and hairless ischial callosities on their hindquarters. The genus shows marked sexual dimorphism in size, coloration and canine development, ranging in size from the smallest Kinda baboon at about 50 centimeters and 14 kilograms to the largest chacma baboon at about 120 centimeters and 40 kilograms.