
Polar bears normally need sea ice to hunt seals, but an isolated group of polar bears living on the rugged, mountainous coast of southeast Greenland have figured out how to eke out a living, even though the sea ice there melts away early in the year.
These bears have found a way to supplement their limited sea ice supply by hunting on freshwater ice that comes from glaciers on land. The glacial ice falls off in chunks into fjords, where the pieces glom together into a jumbled, floating platform that the polar bears use to stalk seals, according to a report in the journal Science.