Only Three Gray Wolves Left on Island Royale National Park: Report

April 19, 2015 11:49 AM

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The wolf population at Island Royale National Park has dwindled down to only three according to the longest predator-prey study in the world.

The researchers from Michigan Technological University are baffled why the wolves are nearly extinct when the moose population is on the rise, according to National Monitor. The annual research has existed for 57 years, making it the longest predator-prey study worldwide.

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