Wolves boost food for Yellowstone’s Grizzlies

Wolves and grizzlies aren’t best buddies. Burly bears can barge in on a feasting pack, making off with the wolves’ fresh kill. Wolves have been known to dig into bear dens and snag a cub.

But after gray wolves returned to Yellowstone National Park in 1995, grizzly bears ate more berries in the summer for a pre-hibernation nutritional boost, researchers reported Sept. 4 in the Journal of Animal Ecology.

Jon

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