How Wolves Change Rivers

Giới thiệu tóm tắt

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.

Thể loại: Phim Tài Liệu

Diễn viên: George Monbiot

Phi hành đoàn: George Monbiot (Director), George Monbiot (Writer), Chris Zabriskie (Music)

Quốc gia: United States of America, United Kingdom

Thời gian chạy: 5 phút

Chất lượng: HD

Giải phóng: 2014

imdb rating 7

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