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A primitive fish lures scientists to Maine

Dogfish are among the most ancient animals with pressurized circulatory systems. They are believed to have evolved 400 million years ago. Dogfish are among the most ancient animals with pressurized circulatory systems. They are believed to have evolved 400 million years ago. (Norbert Wu/Getty Images)
By Murray Carpenter
Globe Correspondent / September 29, 2008

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BAR HARBOR, Maine - The Mount Desert Island Biological Lab has been perched on the Maine coast for nearly a century, in a sort of eddy beside the main tourist route to Bar Harbor. (Full article: 927 words)

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