How Wolves Change Rivers

How Wolves Change Rivers

0h 5m 2014 Documentary United States of America, United Kingdom
Budget: - Revenue: -

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.

Director

George Monbiot

Writer

George Monbiot