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NBC: Wildlife biologist Ian Bullock is a seasoned visitor to the Arctic, but even he was surprised by what he saw last month: a thin female polar bear, shadowed by her cub, trying to challenge a much bigger, stronger male for food.
It wasn't much of a challenge, but it showed just how desperate she was, Bullock told NBC News on returning from his 10th straight summer cruise to the Arctic.
That desperation, he feels, stems from the fact that the Arctic's summer sea ice -- which polar bears using......
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Starving polar bears a sign of warming Arctic
Posted by NBC: Miguel Llanos on September 13th, 2012
Posted in Water Conservation