In Sabah, the subspecies can be found in forested areas throughout the state. In the Danum Valley Conservation Area,Malau-Pin, the Sepilok Forest Reserve, the Tabin Wildlife Reserve and the Kulamba Wildlife Reserve. The only great apes found in Asia, Orang-Utans are more arboreal than the Africa apes, they spend most of their lives in the trees. However, a wide range of plant, foods and insects are also eaten. The Orang-Utans Apes differ from other primates in a number of ways.
Face is hairless with high forehead.
Large cheek pads are found on the faces of males especially older males. Apes have a more upright posture and bear fewer offspring than other primates. Apes also have very long arms, mobile wrists and have no tail. The arms can attain a spread of 2.25m, and reach the ankles when the animals is erect.