How Wolves Change Rivers

TrailerHDPG-13IMDb 6.7

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.

Released: 2014-03-21

Duration: 0h 5m

Genre: Documentary

Country: United States of America

Director: George Monbiot

Writer: George Monbiot

Cast: George Monbiot

Production: Sustainable Man