They have powerful arms, which are eight feet long. Orangutans have strong teeth and jaws. Their legs are smaller and weaker than their arms. The orangutan's legs are five feet long. Orangutans are 200 pounds, and have very heavy bodies.
Orangutans are the largest arboreal mammal.
Arboreal means living in trees. Habitat Requirements Orangutans live in the tropical rainforests of Borneo and Sumatra. Orangutans build crude nests, and they are the only animals who build a roof when it rains. Orangutans live in the canopy of the rain forest. Adaptations Orangutans are much like humans, and they are very intelligent.