An airboat with U.S. Senator Bill Nelson (D-FL) (R) aboard skims across sawgrass during a hunt for Burmese pythons during a state-sponsored snake hunt, in the Everglades, Florida January 17, 2013. Python Challenge 2013 is a month-long event sponsored by the Florida Fish and Wildlife Conservation Commission offering prizes of $1,500 for the most pythons captured and $1,000 for the longest python. REUTERS/Joe Skipper (UNITED STATES - Tags: SOCIETY ENVIRONMENT ANIMALS POLITICS)