Chimpanzee

The chimpanzee is grouped with the apes, such as the gorilla. However, it looks a lot like a tailless monkey. Its hair is black or brown and covers the entire body except for the face. Chimpanzees have flat faces and large external ears. They also have very long arms (50 percent longer than their body length.) Chimpanzees have an opposable thumb and are often seen using "tools". These tools are usually used for food procurement. A twig, stripped of leaves, is thrust into a termite nest and comes out covered with insects that are then eaten. Chimpanzees avoid large bodies of water and are usually only able to swim if extremely excited. Chimpanzees are diurnal and build nests to sleep in at night. They spend time both in trees and on the ground. In a tree, movement is usually done by swinging from branch to branch. On the ground, while they can walk erect, movement is usually done by knuckle walking (using one arm to form a tripod with the legs).