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From hunting to raising their cubs, polar bears are facing new challenges to their age-old way of life as Arctic winters warm and ice disappears. On the other hand, their ancestor, the grizzly, is finding a newly abundant world. "Nature" tracks both species at close range in "Arctic Bears," premiering on PBS Sunday, February 17 at 8 p.m. (check local listings).

Academy Award-winning actor F. Murray Abraham narrates the film, part of the 26th season of the Peabody and Emmy award-winning series produced by Thirteen/WNET New York for PBS. Major support provided by Canon U.S.A. Inc., Toyota, and the Corporation for Public Broadcasting. For more information, visit

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current22:12, October 1, 2013Thumbnail for version as of 22:12, October 1, 2013480 × 269 (9 KB)McCulloch09 (wall | contribs)created video