There is evidence of a diesel spill after Doyon 26 toppled over Friday, according to the Alaska Department of Environmental ...

George "Iceberg" Miller finds daily cold-weather jumps into Lake Michigan help overcome fear and kick start his happy ...

Nuisance Bear’ tracks a polar bear’s fraught journey through human-dominated landscapes in Churchill, Manitoba.

In Jack Weisman and Gabriela Osio Vanden's documentary, the "Polar Bear Capital of the World" takes center stage. So too does ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Grizzly bears are one of the few apex predators. They’re at the top of the food chain and will attack almost anything if they’re hungry enough. Brown bears are also known to be incredibly territorial.

In subzero winds, hypothermia announces itself in small, easy-to-miss ways. Here’s what one Nat Geo Explorer does to combat it in some of the coldest places on Earth.

In subzero winds, hypothermia announces itself in small, easy-to-miss ways. Here’s what one Nat Geo Explorer does to combat it in some of the coldest places on Earth.

Discover how black, grizzly, and polar bears choose safe, snow-covered winter dens and what new research reveals about their ...