The term 'Ape Cousin' refers to the BABOON, which is a type of Old World monkey that is found in Africa and Arabia. It is one of the largest non-hominoid members of the primate order and is characterized by its long, dog-like muzzle and thick fur. Baboons are omnivorous and live in large troops that can range from 10 to over 100 individuals. They are highly social animals and have complex communication systems.