Reintroduction of wolves aids Yellowstone's bears

07/29/2013 | Discovery

Since wolves have been reintroduced to the ecosystem of Yellowstone National Park, they've indirectly helped their grizzly bear neighbors, according to a study published in the Journal of Animal Ecology. When wolves were missing from the park, elk herds grew and ate most of the berries that are an important part of the bears' diet. The study has found that the wolves are thinning out the elk, leaving more berries for the bears.

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