Here's a more specific breakdown:
* Africa: They can be found in diverse environments from rainforests and savannas to mountains and even deserts.
* Asia: Old World monkeys inhabit a wide variety of habitats in South and Southeast Asia, including rainforests, mangrove swamps, and even the high Himalayas.
However, it is important to note:
* They are not found in the Americas. Monkeys found in the Americas are called New World monkeys, and they have distinct characteristics and evolutionary histories.
Let me know if you'd like to know more about a specific Old World monkey species or its habitat!