FILE - In this Dec. 2, 2013 file photo, Karen, a blind and aging sea lion, swims while working with a trainer at the Dolphin Research Center, in Grassy Key, in the Florida Keys. The Dolphin Research ... more 
FILE - In this Dec. 2, 2013 file photo, Karen, a blind and aging sea lion, swims while working with a trainer at the Dolphin Research Center, in Grassy Key, in the Florida Keys. The Dolphin Research Center in Marathon offers hands-on training in the care of marine mammals for would-be professional caregivers and trainers. (AP Photo/Lynne Sladky, File) less 
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Associated Press | Photo By Lynne Sladky, File
Wed, Mar 5, 2014 1:21 PM EST