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Small group of people sitting outdoors at tables of a cafe in Neal's Yard, Covent Garden, London, England, United Kingdom, Europe
Buffalo at prarie State Park in Kansas graze around a pile of chert brought in by Archeologist Neal Lopinot in an attempt to see whether Buffalo's hoofs could flake chert in a way that could be mistaken for a man made object. The experiment attempted to recreate the impact a 1500 pound Bison hoof has on a piece of chert.
A fieldworker sharpens shovels the old fashioned way at the Big Eddy, an Archaeological site on the Sac River in southwestern, MO. Archaeologist Neal Lopinot from Missouri State University has been digging their since 1997 to gain a more complete understanding of the prehistoric record in North America. (Photo by David McLain, Aurora)