How did the reintroduction of wolves to Yellowstone national park affect the beaver population

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The reintroduction of wolves to Yellowstone National Park had a positive effect on the beaver population. Wolves help to control the population of coyotes, which are a major predator of beavers. With fewer coyotes, the beaver population was able to increase. Additionally, wolves help to create more open areas in the park, which provides more suitable habitat for beavers.