As polar ice continues to melt at alarming rates, Arctic and Antarctic wildlife are facing unprecedented challenges. From ...

Antarctica also has sea ice, cold temperatures and seals. So why aren't there polar bears on the southernmost continent? The answer has to do with the evolution and geological history of the Earth.

Polar bears live in the frozen Arctic landscape, the northernmost point on the planet. They are not found in Antarctica, even though the North and South poles are both snow-covered, icy-cold ...

Modern Antarctica is a frozen desert, largely devoid of life except around the coasts. But this wasn't always the case. In 1833, naturalist James Eights found fossilized wood buried in the ...