Can Wolves Really Have This Big and Impact on the Environment- Sustainable Man- Films for Action

How Wolves Change Rivers

 

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	Posted by  Sustainable Man  on Feb. 13, 2014	sustainableman.org
	4 min - Short Film - 173,416 Views

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.

"When we try to pick out anything by itself, we find it hitched to everything else in the Universe." - John Muir

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