Image 1 of 8 Curious about human visitors, a three year old Orangutan looks on from its vantage point in a dipterocarp forest in the region of Sabah, Borneo.

Image 2 of 8 The Orangutan, Pongo pygmaeus is restricted to Northern Sumatra and Borneo. Two subspecies are recognized.

Image 3 of 8 Usually solitary, the Orangutan is a large intelligent primate. The young remain with mother until five or six years of age.