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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick.Got a minute?
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2 .Wolves and bears sound like unlikely allies.
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3 .But the resurgence of Yellowstone Park's canine population has helped the bears.
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4 .In a berry interesting way.
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5 .In the 1990s, people reintroduced wolves to Yellowstone Park, where they had been absent for most of the century.
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6 .As their population grew, they began hunting elk, reducing their number.
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7 .And with fewer elk snacking on berries, more fruit remained available for bears.
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8 .Comparisons of grizzly scat collected in the years before and after the wolves' return showed an increase in the bears' berry consumption,
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9 .particularly during the months of July and August.
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10 .The study is in the Journal of Animal Ecology.
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11 .Fruit can make up fully half of a grizzly's diet as it prepares for hibernation.
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12 .But bears and berries aren't the only ones to benefit from wolves.
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13 .The canine comeback also boosted the growth of popular elk foods such as aspen and willow trees.
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14 .Which proves even a single species can have a beary strong ecosystem effect.
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15 .Thanks for the minute, for Scientific American 60-Second Science.I'm Sophie Bushwic.
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