How Wolves Can Alter the Course of Rivers

SustainableManPublished: February 18, 2014Updated: February 19, 2014183,289 viewsVirality: 55%
Published: February 18, 2014Updated: February 19, 2014

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 titled, 'How Wolves Change Rivers'.

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