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How Wolves Change Rivers

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When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable "trophic cascade" occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains.

Runtime: 5 minutes

Release: Mar 21, 2014

IMDb: 0.00/10 by 0 users

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Country: ,

Language: English

Budget: 0

Revenue: 0

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