The Arctic is one of the harshest environments on Earth, where freezing temperatures, scarce food, and months of darkness ...

Add Yahoo as a preferred source to see more of our stories on Google. Polar bears are the world’s largest bear species, but even they usually target prey smaller and easier to overpower than a ...

The effects of reductions in sea ice extent and thickness, shorter periods of maximum ice extent, as well as changes in sea ice dynamics and structure, may vary in different areas of the Arctic, but ...