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UMass Amherst - Loss of arctic ice may contribute to extinction

Scientists have expected for some time that the Arctic Ocean will be ice-free in summer by the end of this century. Writing in the Dec. 16 issue of the journal Nature, a trio of researchers, including conservation geneticist Andrew Whiteley, say the seasonal loss of this ice sheet, a continent-sized natural barrier between species such as bears, whales and seals, could mean extinction of some rare marine mammals and the loss of many adaptive gene combinations.  More...

12/16/10