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The Times of India
The Times of India
World
TOI World Desk

In 1939, a wildlife biologist hiked 1,700 miles through Alaska's Denali to learn why sheep were vanishing; he found winter, not wolves, was to blame

Denali the National Park Service Alaska

When wildlife populations decline, predators are often blamed. That is what happened in Alaska’s Denali National Park, where Dall sheep numbers fell sharply in the 1930s. Many people thought wolves were to blame and demanded predator control measures. However, a field study by wildlife biologist Adolph Murie challenged that assumption and changed how conservationists understood predators.

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