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Orangutan, Sumatra (USNM 143596)
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Orangutans are great apes and one of our closest living relatives. The Smithsonian Institution’s Division of Mammals (http://vertebrates.si.edu/mammals/) houses many orangutans in its scientific collections.
This specimen, USNM 143596 (http://collections.mnh.si.edu/search/mammals/?irn=7251581), is an adult female orangutan from the island of Sumatra, Indonesia (Pongo abelii). It was collected by W.L. Abbott at Aru Bay in 1905 and weighed 81 lbs. The flash model of this orangutan femur is scaled to 50% in order to fit inside the viewer.
This is a CT scan of the left femur of USNM 143596. 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 (http://smithsonian20.si.edu/fund.html), and the Smithsonian Collections Care and Preservation Fund.