Houston Museum of Natural Science Visiting Curator of Paleontology Robert Bakker, Ph.D. works during the museum's paleontologist team field expedition to excavate a nearly complete Dimetrodon fossil ... more 
Houston Museum of Natural Science Visiting Curator of Paleontology Robert Bakker, Ph.D. works during the museum's paleontologist team field expedition to excavate a nearly complete Dimetrodon fossil at the Craddock Ranch on Dec. 11, 2010, in Seymour, Texas. less 
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Associated Press | Photo By Houston Chronicle, James Nielsen
Fri, Dec 17, 2010 3:30 AM EST