Saturday, August 9, 2008

Shellfish May Invade North Atlantic As Ice Melts

North Pacific shellfish—including snails and other mollusks—may blaze a path across the Arctic Ocean to the North Atlantic if the sea ice melts in coming decades as predicted, a pair of scientists said today.

Mollusks traveled the northern passage when the Arctic was last ice free, about 3.5 million years ago, during a warm stage of the Pliocene, which spanned 5.3 to 1.8 million years ago, the scientists say.

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