Original title
How Wolves Change Rivers
Released
3/21/2014
Origin country
GB, US
Genre
Documentary
Production companies
Sustainable Man
Budget
—
Revenue
—
Runtime
0hr 5min
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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