How Wolves Change Rivers (2014)

Name: How Wolves Change Rivers
Released: 2014-03-21
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2014-03-21 · 5 min · Rating 0.00/10

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.