Video: How wolves can alter the course of rivers

TED Blog

Wolves will travel to drink from a river. But could the presence of wolves lead a river to change its behavior?

[ted_talkteaser id=1816]In his TED Talk, George Monbiot poetically explains how reintroducing wolves to Yellowstone National Park after a 70-year absence set off a “trophic cascade” that altered the movement of deer, sent trees soaring to new heights, attracted scores of new animals to the area (think: beavers, rabbits, bears, bald eagles and more), and stabilized the banks of rivers making them less susceptible to erosion. Above, see that story set to music — and howls — by SustainableMan.org, who took the audio track from the talk and laid it over beautiful nature footage. It’s a glorious glimpse of how deeply the natural world is interconnected.

If you love this short video, definitely check out Monbiot’s whole TED Talk too. In the talk, he shares some ways we can…

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