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Gibbon, Indonesia (USNM 121677)
Gibbons are apes and one of our closest living relatives. The Smithsonian Institution’s Division of Mammals (http://vertebrates.si.edu/mammals/) houses many gibbons in its scientific collections.
This specimen, USNM 121677 (http://collections.mnh.si.edu/search/mammals/?irn=7245557), is a male Kloss’s gibbon (Hylobates klossii) from Indonesia, also known as the Mentawai gibbon or the Bilou. This specimen was collected by William Abbott in 1902 on North Pagai (Pagai Utara) of the Pagai Islands. The Pagai Islands are within the Mentawai Island archipelago of the Sumatera Barat Province off the west coast of Sumatra.
This is a CT scan of the mandible of USNM 121677. 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.
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.