Reuters: Lifestyle: Wolves help preserve berries for imperiled Yellowstone bears: study

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Wolves help preserve berries for imperiled Yellowstone bears: study Jul 29th 2013, 20:15 SALMON, Idaho (Reuters) - The return of wolves to Yellowstone National Park may be helping imperiled grizzly bears to survive by keeping elk herds on the move and preventing them from destroying berries that are a staple food for grizzlies, according to a new study.

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