Study: Even With Population Density Increase, Food Decline, Climate Change, Human Impacts, Yellowstone Grizzlies Maintaining Body Fat For Hibernation

Grizzly bears in the Greater Yellowstone Ecosystem have been able to gain the body fat they need for hibernation even as population densities have increased and as climate change and human impacts have changed the availability of some foods, according to a new study by the U.S. Geological Survey and its partners.

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