Mandrill (Mandrillus sphinx) is an Old World monkey (family Cercopithecidae), characterized by large size, long limbs, stubby upright tail, light brown or olive-colored fur, and, in males, a bright red nose bordered by blue as well as a red and blue rump, with duller colors in females. The mandrill is the world’s largest species of monkey. It is one of only two species in the genus Mandrillus, the other being the Drill (Mandrillus leucophaeus). The mandrill is closely related to the baboons and was once classified together with them in the genus Papio. The word “mandrill” means “Man-Ape.” Mandrills are found in tropical rainforests of West Africa.