Playful Olive Baboon baby at Arusha National Park, Tanzania

The olive baboon is a member of the family Cercopithecidae. The species is the most widely ranging of all baboons: It is found in 25 countries throughout Africa, extending from Mali eastward to Ethiopia and Tanzania. Isolated populations are also found in some mountainous regions of the Sahara. It inhabits savannahs, steppes, and forests.