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Latest Isle Royale National Park Stories

2009-04-07 13:59:26

Scientists say they've found extreme inbreeding of an isolated wolf population at a U.S. island national park has resulted in genetically deformed bones. Michigan Technological University researchers say they've collected the first scientific evidence that inbreeding caused the genetic deterioration of the bones of the wolves at Isle Royale National Park in northern Lake Superior. Rolf Peterson and John Vucetich of Michigan Tech and their colleagues -- Jannikke Raikkonen of the Swedish Museum...

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2009-04-05 07:20:00

Nearly thirty gray wolves living on an island chain in northwestern Lake Superior have backbone malformations as a result of genetic inbreeding, presenting yet another hurdle for the wolves' long-term survival, wildlife experts say.Although only confirmed recently, the problem has seemingly been in existence or decades in the tiny, isolated wolf packs in Isle Royale National Park in Michigan.The abnormalities are also found in some domestic dogs, and can cause pain, partial paralysis and can...

2006-09-12 09:20:22

For campers at Isle Royale National Park, sighting a gray wolf is a rare and thrilling experience. At least, it has been. But some wolves have gotten a bit too familiar this summer, wandering into camping areas and showing little of their customary fear of people. No attacks or threatening behavior have been reported. But the close encounters prompted warnings to visitors not to feed the wolves. "Wolves are wild animals and potentially dangerous like any wild animals," said Michigan Tech...

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2006-03-11 14:32:27

TRAVERSE CITY, Mich. -- Gnawing leisurely on the remains of a moose carcass, the wolf pack's alpha male seemed unaware that mortal danger was coming ever closer. Suddenly the eight-member rival pack burst into view. The alpha scrambled to his feet, but too late. Howling and barking, the enemy chased him down and mercilessly attacked, killing the hapless victim within a couple of minutes. It's not unusual for the gray wolves on Isle Royale National Park to target each other, said John...

2005-08-18 14:25:00

Philadelphia, PA -- Otters cavorting in the water is a scene with which we're all familiar. Yet, unlike many other mammals that spend a considerable amount of time in the water"“polar bears, seals, dolphins, and whales"“river otters do not have a thick layer of body fat to keep warm. They rely, instead, on a few unique adaptations; namely, their fur and the densely packed layer of specially adapted underhairs. Using scanning electron microscopy and polarizing light...


Latest Isle Royale National Park Reference Libraries

Isle Royale National Park
2013-04-18 00:37:38

Isle Royal National Park is located in the state of Michigan in the United States. The park contains 571,790 acres of land and water. Its mains feature is Isle Royale, the largest island in Lake Superior that stretches over forty-five miles. The park also contains four hundred smaller islands and the water that connects them. The park was established in 1940, designated as a Wilderness Area in 1976, and designated as an International Biosphere Reserve in 1980. Isle Royal once hosted a...

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