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. 2011 Apr-Jun;12(2):83–91. doi: 10.4103/1995-705X.86023

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Copyright: © Heart Views

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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graphic file with name HV-12-83-g001.jpg — Cave-drawing of a mammoth in El Pindal cave in Spain, with dark smudge at shoulder, which may represent the heart. The drawing may have been used to teach young hunters where to aim their arrow or spear. (Photo Source: Lyons AS, Petrucelli RJ. Medicine: An Illustrated History. New York. Harry N. Abrams Inc:1987.