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Wolves have helped strengthen several species of plants and animals in Yellowstone National Park. (Photo by Marlene Foard)
Wolves have helped strengthen several species of plants and animals in Yellowstone National Park. (Photo by Marlene Foard)

Wolves bring subtle benefits to Yellowstone

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The idea of reintroduction of wolves to the North Country has faded in recent years because of biological and political hurdles, though it continues to be the dream of some environmentalists. A controversial reintroduction program did go forward in Yellowstone National Park in the mid-90s, and wolves are now reestablished there after an absence of almost 70 years. According to the Yellowstone website, packs are now found in various parts of the park. Since the wolf returned to Yellowstone, the predator's had wide-ranging and unexpected effects on the ecosystem of the park. As Kinna Ohman reports, top predators such as wolves might be more important than biologists had realized.

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