Winter the dolphin, who has no tail, glides Tuesday across Panama, an older female dolphin that has taken on the role of surrogate mother to Winter at the Clearwater Marine Aquarium. Winter is being outfitted for a prosthetic and will be taped by a crew from CBS this week for airing later on The Early Show. Winter was rescued in December 2005 after becoming wrapped in the line of a crab trap, which cost her a tail. When she was rescued, she weighed 55 pounds; now she's up to a little more than 180. On Friday she will try out the material for her tail.