The coldest and snowiest places on earth pose a challenge to anyone visiting such locations as the Arctic Circle or Antarctica, but what about the year-round animal population? How do they cope for many months with life in these frozen wonderlands where temperatures can plummet to as low as minus 50 degrees? Gordon Buchanan, a wildlife cameraman used to filming in frigid lands around the globe, explains how creatures like the wolf, Arctic fox, bison, reindeer, lynx, weasel, polar bear, penguin, Weddell seal, and woolly bear caterpillar adapt to their surroundings or employ clever tactics to survive.