How Wolves Change Rivers (2014)
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Original Title: How Wolves Change Rivers
Release Date: March 21, 2014
Runtime: 5 minutes
Budget: $0.0
Revenue: $0.0
Overview
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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