(How Wolves Change Rivers)

Content: 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.

Countries:

United States of America,

United Kingdom

Genres:

Documentary

Runtime:

5 minutes

Year:

2014

Directors:

George Monbiot

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Production companies:

Sustainable Man

Actors:

Narrator

Crews:

Director

Writer

Music