Bison, Pine Nuts, Trout and Grizzlies: Perfect Storm For Yellowstone National Park's Wildlife Managers?
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Yellowstone National Park's northern range at times has been labeled "America's Serengeti" for the rich and diverse wildlife that inhabits it. But today, with native trout imperiled by non-native predators, whitebark pine trees at risk of climate change, and bison being cut off from valuable winter habitat and at times slaughtered, is the ecosystem unraveling?