Loss of Arctic ice may promote hybrid marine mammals
Thursday, December 16, 2010 - 14:40
in Biology & Nature
Scientists have expected for some time that the Arctic Ocean will be ice-free in summer by the end of this century. Researchers now 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.