Of bears and berries: Return of wolves aids grizzly bears in Yellowstone

[unable to retrieve full-text content]A new study suggests that the return of wolves to Yellowstone National Park is beginning to bring back a key part of the diet of grizzly bears that has been missing for much of the past century -- berries that help bears put on fat before going into hibernation. The berries could aid bear survival and reproduction.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_environment/~3/rOLjani-0Q8/130729133120.htm

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