How Wolves Change Rivers poster

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.

  • Release date
  • March 21, 2014
  • Runtime
  • 5 min
  • Genres
  • Documentary
  • Director
  • George Monbiot

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George Monbiot photo George Monbiot Narrator

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