15 polar bears to get you through the (not quite) polar vortex
Why Sea Ice Matters National Snow and Ice Data Center
Lincoln Park Zoo's latest polar bear frolics in new exhibit space
15 polar bears to get you through the (not quite) polar vortex
Scientists predict the year polar bears will disappear from this
Polar Vortex: Perfect for Polar Bears
Polar bears scavenge on garbage to cope with climate change
Hunting polar bears catch wind of their prey, new study confirms
15 polar bears to get you through the (not quite) polar vortex
15 polar bears to get you through the (not quite) polar vortex
Scientist settles in iconic 'drowning polar bears' row with US
15 polar bears to get you through the (not quite) polar vortex
Twenty stories of good news about polar bears! - Fabius Maximus