A large primate is a type of mammal that includes apes, baboons, and gorillas. APE is a three-letter word for a large primate, while BABOON is a six-letter word and GORILLA is a seven-letter word. Apes are typically smaller than baboons and gorillas, and they have longer arms and shorter legs. Baboons are medium-sized primates with long, dog-like snouts and close-set eyes. Gorillas are the largest of the primates, with thick fur and large heads.