Sen. Ted Cruz expressed optimism about the White House's request to Congress for border security funding, which would ...

A study in the journal Science Advances reveals how polar bears manage to get wet in the cold without their fur freezing.

A cuddly polar bear cub climbed all over its mom in a tender moment captured at Wapusk National Park in Manitoba, Canada.

Polar bears are one of the largest mammals on land; only the African elephant can tower over the polar bear in this corner of ...

The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar ...