mandrill

Mandrill first appeared in English around 1744, likely as a compound of man + drill. The problem is that drill itself is obscure. It may come from a West African language—possibly a word for 'baboon' or 'ape'—but the specific source has never been identified. Some linguists have suggested a connection to a Kwa or Bantu term, but no definitive etymology exists.

European naturalists first described the mandrill in the 1600s after encountering it in the forests of equatorial West Africa. The animals were startling. Male mandrills have brilliant blue and red facial coloring, a yellow beard, and a violet-and-red rump—the most vivid coloration of any mammal. Early descriptions struggled with vocabulary. One 17th-century account called it 'a monster with a painted face.'

Carl Linnaeus classified the mandrill in 1758, initially grouping it with baboons under the genus Simia. It was later reclassified into its own genus, Mandrillus, in 1876. The classification history reflects European confusion: is this a baboon? An ape? Something else entirely? The animal defied the neat categories that Enlightenment taxonomy demanded.

Mandrills live in the rainforests of Cameroon, Gabon, Equatorial Guinea, and Congo. They form the largest groups of any non-human primate—hordes of up to 1,200 individuals have been documented in Lopé National Park in Gabon. Charles Darwin singled out the mandrill in The Descent of Man (1871), writing that 'no other member in the whole class of mammals is coloured in so extraordinary a manner.'