Researchers find gray wolf-grizzly bear link in Yellowstone
Wednesday, July 31, 2013 - 23:00
in Earth & Climate
The gray wolf's return to Yellowstone after a 70-year absence has boosted an important food source for the threatened grizzly bear, a study finds.Reintroduction of the gray wolf to Yellowstone National Park has boosted an important food source for the threatened grizzly bear, researchers have found in an example of how the return of a top predator can have far-reaching ecological effects.