July 29, 2013 — 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.
http://www.sciencedaily.com/releases/2013/07/130729133120.htm
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Re: Of Bears and Berries: Return of Wolves Aids Grizzly Bears in Yellowstone
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