World's Largest Monkey


The Mandrill monkey which is related to the baboon has the distinction of being the world's largest monkey. The Mandrill (Mandrillus sphinx) is a primate of the Cercopithecidae (Old-world monkeys) family, closely related to the baboons and even more closely to the Drill. The word mandrill means "Man-Ape".

The male mandrill (Mandrillus sphinx) or man-ape of equatorial West Africa has an average head and body length of 61–76 cm (24-30 in) and a tail length of 5.2–7.6 cm (2-3 in). Adult males weigh an average of 25 kg (55 lb), although specimens weighting up to 54 kg (119 lb) and measuring 50.8 cm (20 in) to the shoulder have been known. The mandrill is also one of the most colourful mammals, recognized by its naked vivid-blue rump, red-striped face and yellow beard.

The Mandrill is found in the tropical rainforests of southern Nigeria, southern Cameroon, Gabon, Equatorial Guinea and Congo. Its distribution is bounded by the Sanaga River to the north and the Ogooué and Ivindo rivers to the east. Recent research suggests that mandrill populations north and south of the Ogooué river are genetically so different as to be different sub-species.

Mandrills are social creatures and live in large groups, primarily including females and young and led by a single dominant male. Most adult males are solitary. The largest group verifiably observed in this way contained over 1300 individuals, in Lopé National Park, Gabon - the largest aggregation of non-human primates ever recorded.

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