Ingo Arndt / Hamadryas baboons grooming one another {Papio hamadryas} Africa

Ingo Arndt / Hamadryas baboon male threat display {Papio hamadryas} Africa

Tony Phelps / Chacma baboon (Papio hamadryas ursinus) portrait of adult male. deHoop Nature reserve. Western Cape, South Africa.

Denis-Huot / Olive baboon (Papio hamadryas anubis) group in an acacia tree, Nakuru National Park, Kenya

Denis-Huot / Olive baboon (Papio hamadryas anubis) close-up of a male, Masai-Mara Game Reserve, Kenya

Denis-Huot / Yellow baboon (Papio hamadryas cynocephalus) male catching a young Thomson's gazelle (Eudorcas thomsoni) Amboseli National Park, Kenya

Christophe Courteau / Hamadryas Baboon {Papio hamadryas} climbing palm tree in order to feed on nuts. Awash NP, Ethiopia

Edwin Giesbers / Young Hamadryas baboon (Papio hamadryas) perched on mothers back. Captive. Apenheul zoo; the Netherlands.

Edwin Giesbers / Young Hamadryas baboon (Papio hamadryas) perching on mothers back. Captive. Apenheul zoo; the Netherlands.

Edwin Giesbers / Young Hamadryas baboon (Papio hamadryas) perched on mothers back. Captive. Apenheul zoo; the Netherlands.

Edwin Giesbers / Head portrait of Hamadryas baboon (Papio hamadryas) Captive. Apenheul zoo; the Netherlands.

Anup Shah / Hamadryas baboons display red bottoms {Papio hamadryas} C