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  • Nature

Nature | Fortress of the Bears | PBS

Duration: 50:09 (Full Program)
Program: Nature #2906
Broadcast Date: Jan. 25, 2012

Alaska's Admiralty Island is home to an estimated 1800 brown bears, the largest concentration of bears in the world. Enter a world shaped by bears, trees, and salmon, and the delicate balance of their interconnected lives.

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Post Date: January 26, 2012