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 by Sustainable Man.
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This article (When They Brought The Wolves To Yellowstone, They Had No Clue This Would Be The Result) is free and open source. You have permission to republish this article under a Creative Commons license with attribution to the author and TrueActivist.com.
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