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How Wolves Change Rivers

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.
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País: United States of America, United Kingdom

Tempo de execução: 5 minutos

Qualidade: HD

Lançamento: 2014

imdb rating 7

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