At night each chimpanzee makes its own nest in a tree. The nest is 25 to 30 feet from the ground and it is covered by vines tied together. Chimpanzees eat fruit, leaves, buds, birds' eggs, and insects. Some chimpanzees eat meat from monkeys and pigs. Chimpanzees have a great memory and can be trained easily.
Chimpanzees are better than most animals at solving simple problems.
Chimpanzees are able to classify colors and geometric shapes. Chimpanzees have been taught to communicate with humans with a keyboard with symbols that stand for simple words.