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 in this movie remix.


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Learn more about the narrator, George Monbiot.

Scholarly Articles on How Wolves Change Rivers:

Yellowstone After Wolves

Trophic cascades in Yellowstone: The first 15 years after wolf reintroduction


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