Chimpanzees and orangutans are both members of the ape family, which is a group of primates that includes gorillas, bonobos, and humans. Chimpanzees and orangutans are two of the most well-known species of APES, and they are both found in tropical regions of Africa and Southeast Asia. Chimpanzees are known for their intelligence and social behavior, while orangutans are known for their solitary lifestyle and use of tools.