image: The Debra L. Friedkin Site in Texas. This image relates to an article that appeared in the March 25, 2011, issue of Science, published by AAAS. The study, by Dr. Michael Waters, at Texas A&M University in College Station, Texas, and colleagues was titled, "The Buttermilk Creek Complex and the Origins of Clovis at the Debra L. Friedkin Site, Texas." view more
Credit: [Image courtesy of Michael R. Waters]