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/ Modified dec 11, 2010 5:53 p.m.

Nature: A Mystery in Alaska

Many animals in Alaska's complex and spectacular ecosystem decline dramatically in number with no clear explanations why. Thursday at 8 p.m. on PBS-HD. by Colleen Greer

Alaska is home to one of the world's most complex and spectacular ecosystems, and also one of the greatest wildlife mysteries, as many animals decline dramatically in number with no clear explanations why.

nautre_alaska_mys617x347 Steller's sea lions are rapidly disappearing from one of the last great wildlife strongholds of the world, and no one knows why.
PBS

Against the breathtaking backdrop of magnificent mountains and seacoasts, the film attempts to unravel at least part of the enigma.

Thursday at 8 p.m. on PBS-HD.

Nature

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