On my trip to Alaska this past winter, I spent a lot of time deciding ... We wish we had packed our long lens to better capture the scenery. There were many stunning scenes that I wanted to ...

Here, a look at the tough and resourceful characters that face up to the challenges of winter. Show more Alaska is one of the most iconic wildernesses on the planet - America's last frontier.

Permafrost underlies the surface of one-quarter of the globe’s land and more than half of Alaska. That frozen ground would seem to stall microbes — especially in winter — but scientists have ...