Isle Royale gray wolf population drops to three

April 17, 2015 11:31 PM

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Scientists say the number of gray wolves at Isle Royale National Park has dropped to three — the fewest due to the fact biologists began studying the population on the Lake Superior island chain in the 1950s. Researchers with Michigan Technological University...

Scientists say the number of gray wolves at Isle Royale National Park has dropped to three — the fewest due to the fact biologists began studying the population on the Lake Superior island chain in the 1950s.

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