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Orangutan, Borneo (USNM 145307)

Orangutans are great apes and one of our closest living relatives. The Smithsonian Institution’s Division of Mammals ( houses many orangutans in its scientific collections.

This specimen, USNM 145307 (, is a adult male orangutan from the island of Borneo, Indonesia (Pongo pygmaeus).  It was collected by W.L. Abbott in 1907 near the Sungai Matan stream of the Sempang River. The Male weighed 75 lbs with a head to body length of 735 mm. His total length measured 1150 mm with a hind tarsus length of 290 mm.

This is a CT scan of the mandible of USNM 145307. These three-dimensional scans are made publicly available through the generous support of the Smithsonian 2.0 Fund, provided from the annual gifts of the Smithsonian National Board to the Secretary to use at his discretion (, and the Smithsonian Collections Care and Preservation Fund. 

The main goal of this joint initiative between the Human Origins Program and the Division of Mammals is to make the NMNH's scientific collections of our closest living relatives, the apes, available in 3D for education and research.