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A red fox shows its ingenious method of catching rodents that it can hear - but not see - beneath the snow. Join NATURE for a breathtaking look at wintertime deep within America's first national park.

Christmas in Yellowstone aired on PBS Sunday, December 20, 2009 at 8pm (check local listings) as part of the 28th season of the Peabody and Emmy award-winning series produced by Thirteen in association with WNET.ORG for PBS. Major support provided by Canon U.S.A. Inc. For more information, visit