Monkey, a word loosely applied to apes, baboons, Old and New World monkeys, marmosets and lemurs.

Baboon

Monkey, a word loosely applied to apes, baboons, Old and New World monkeys, marmosets and lemurs.

Monkey, a word loosely applied to apes, baboons, Old and New World monkeys, marmosets and lemurs.

Baboon

Monkey, a word loosely applied to apes, baboons, Old and New World monkeys, marmosets and lemurs.

Skull of a baboon, showing the brain cavity.

Baboon skull

Skull of a baboon, showing the brain cavity.

The Gelada (Theropithecus gelada) is a baboon relative in the Cercopithecidae family of Old World monkeys.

Gelada Baboon

The Gelada (Theropithecus gelada) is a baboon relative in the Cercopithecidae family of Old World monkeys.

"The skeleton of the Chacma Baboon." — Encyclopedia Britanica, 1893

Chacma Baboon

"The skeleton of the Chacma Baboon." — Encyclopedia Britanica, 1893