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Macaque, Indonesia (USNM 123144)
Old World monkeys are primates and are more closely related to humans and apes than any other living nonhuman primate group. The Smithsonian Institution’s Division of Mammals (http://vertebrates.si.edu/mammals/) houses many Old World monkeys in its scientific collections.
This specimen, USNM 123144 (http://collections.mnh.si.edu/search/mammals/?irn=7246080), is a male southern pig-tailed macaque (Macaca nemestrina) from Indonesia. This individual was collected in 1903 by William Abbott near Kateman River on the island of Sumatra. This specimen weighed 19 lbs and measured 720 mm in total length. The tail measured 190 mm long with a head to body length of 530 mm.
This is a CT scan of the cranium of USNM 123144. 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 nonhuman primate relatives available in 3D for education and research.