The term 'arboreal ape' refers to three species of primates that live in trees: the orangutan (5 letters), the bonobo (6 letters), and the CHIMPANZEE (10 letters). All three species are native to Africa and Asia, and they share many physical and behavioral traits. They are all highly intelligent, social animals that use tools and communicate with each other. They also have similar diets, consisting mainly of fruit, leaves, and insects.