Las Vegas Sun

November 28, 2014

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This undated photo released by the U.S. Fish and Wildlife Service shows a sow polar bear resting with her cubs on the pack ice in the Beaufort Sea in northern Alaska.

Steve Amstrup / AP/U.S. Fish and Wild Life Service

This undated photo released by the U.S. Fish and Wildlife Service shows a sow polar bear resting with her cubs on the pack ice in the Beaufort Sea in northern Alaska.