Bison, Pine Nuts, Trout and Grizzlies: Perfect Storm For Yellowstone National Park's Wildlife Managers?
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?