A tailless primate is a type of mammal that does not have a tail. The three most common types of tailless primates are apes, chimpanzees, and gibbons. Apes are large primates with long arms and no tails, and they are found in Africa and Asia. Chimpanzees are also tailless primates, and they are found in the forests of Central and West Africa. Gibbons are the smallest of the tailless primates, and they are found in Southeast Asia.