ARCTIC OCEAN - George Durner, a polar researcher from the U.S. Geological Survey, hands vials to Christina Galvin, a science teacher from the Hayward, Calif. sent to the Arctic through a program called Polar Trek, after collecting blood samples from a polar bear cub. The Coast Guard Cutter Polar Sea transported the scientists to the Arctic to conduct polar bear research. U.S. Coast Guard photo by Petty Officer 3rd Class Pamela J. Manns
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