A terrestrial monkey is a type of primate that lives on land, as opposed to an aquatic or arboreal monkey. The most common example of a terrestrial monkey is the BABOON, which is a large, social primate found in Africa and Arabia. Baboons have long, dog-like snouts and powerful jaws, and they live in large troops that can number up to several hundred individuals. They are omnivorous, eating both plants and animals, and they are known for their loud vocalizations and aggressive behavior.