Bornean Orangutan - Utah's Hogle Zoo Home Animal Tour Africa Asia N. America S. America Bornean Orangutan Pongo pygmaeus pygmaeus Range Sabah, Sarawak, Kalimantan. All levels of lowland primary rain forest. Almost totally arboreal. Rivers and streams make natural boundaries. Size Obvious sexual dimorphism.
Weight is usually greater in captivity.
Characteristics Coloration of the orangutan varies from orange red to black. From the top of the head a fringe of fur lies toward the forehead. On the arms the hair runs in both directions toward the elbow to help shed rainwater. Orangutans have an almost hairless dished face except that adults have whiskers on the cheek and chin. The skull is narrow and heavy.