How Wolves Change Rivers

• Movies
• 2014-03-21
• EN
• Released
• 0h 5m
• Documentary

• 0.0
• 0
• Trailer

Production

Sustainable Man

Storyline

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.