STORY
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.
CAST & CREW
- George Monbiot
Cast
INFORMATION
- Sustainable Man
Production Companies
- United States of America
- United Kingdom
Production Countries
LANGUAGES
- English
