In this November 14, 2009 photo provided by the University of Florida, University of Florida researchers hold a 162-pound Burmese python captured in Everglades National Park, Fla. Therese Walters, left, Alex Wolf and Michael R. Rochford, right, are holding the 15-foot snake shortly after the python ate a six-foot American alligator. The National Academy of Science report released Monday, Jan. 30, 2012, indicates that the proliferation of pythons coincides with a sharp decrease of mammals in the park.
{}