The term 'Arboreal Apes' refers to primates that live in trees, such as orangs (6 letters). Orangs are a species of great ape native to Indonesia and Malaysia. They are the only exclusively Asian living species of great ape, and are known for their distinctive orange-red fur and long, shaggy coats. They are highly intelligent and have complex social structures, making them one of the most studied species of primate.