How Wolves Change Rivers
1080p
5 min
2014
Published on, 2 months ago
How Wolves Change Rivers
1080p
5 min
2014
Published on, 2 months ago
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.
