Most monkey species can be found in the tropical rain forests of Asia, Africa, Europe and Central and South America. Monkeys may either be arboreal, which means that they spend most of their time in trees or terrestrial, which means that they spend most of their time on the ground.
Monkeys are classified into two major groups: Old World and new World monkeys. Species that are found in Africa and Asia belong to the Old World monkeys and New World Monkeys are the species that are endemic to Mexico, and Central and South America.
Apart from tropical rainforests, monkeys can also be found on the plains, rocky hillsides and in snowy habitats. Baboons and macaques are at home on African plains, while the Japanese macaques can be found in the snowy regions of Japan.