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Orangutan, Borneo (USNM 145305)

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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 145305 (, is a adult male orangutan from the island of Borneo, Indonesia (Pongo pygmaeus).  It was collected by W.L. Abbott in 1907 near the Sempang River, Sungei Matan. The Male weighed 175 lbs with a head to body length of 968 mm. While standing, the orangutan measured 1400 mm tall.

This is a CT scan of the cranium of USNM 145305. 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.