The Little Ice Age allowed a new wave of arctic foxes to colonise Iceland, according to new research. A "bridge" of sea ice appeared during a dip in temperatures between 200 to 500 years ago allowing arctic foxes to migrate to Iceland from different Arctic regions including Russia, North America and Greenland. Researchers say their findings showed the importance of sea ice in creating and maintaining the genetic population of the arctic fox across the polar regions where the animal is found....