Tom Murphy must make camp before dark. He's carrying everything he needs to survive -- plus his camera gear.

This grizzly bear is not sleeping. She's been in a state of hibernation since November.

In winter, nature may offer a sense of grace and solitude unobtainable during the crowded summer camping season. But such serenity comes at a cost. Here are some survival tips.

Photographer and author Tom Murphy is a modern-day adventurer.

Winter is here! Check out these wintry photos submitted by the NATURE Community. Then find out how to add your own.

However inhospitable the weather may turn in the highest regions of the Austrian Alps, evolution has equipped the diverse species that claim these heights as their home with the ability to survive.

Download wintertime wallpaper for your desktop from NATURE's "Christmas in Yellowstone."

TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.

TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.

TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.