The Ecological Domino Effect That Could Save the Natural World
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In 1995, wildlife managers loaded 14 wolves into crates and drove them into Yellowstone National Park. The predators had been absent for 70 years. Within a few seasons, something unexpected began to happen along the riverbanks: willows returned. Then cottonwoods. Then the beavers showed up, then the songbirds, then the bison moved differently across the landscape, and the rivers themselves started to change course. One small intervention had cascaded through the entire system. The wolves hadn
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