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Explain Bot The correct answer is: The wolves increased the population by eating a competitor.
Explanation: The reintroduction of wolves to Yellowstone National Park had a positive impact on the beaver population. Wolves are top predators and they primarily prey on large herbivores such as elk. By reducing the population of elk, the wolves indirectly benefited the beavers, who rely on the availability of aspen trees for food and building dams. With fewer elk to feed on the aspen trees, the beavers had more access to their preferred food source, leading to an increase in their population. Therefore, the presence of wolves indirectly benefited the beaver population by reducing competition for resources.