Alaska: A Year in the Wild: Winter

Documentary following four seasons in the north American state, beginning with winter where temperatures are cold enough to freeze the ocean, and snowfall is measured in feet rather than inches. As temperatures hit minus 60 and food becomes scarce, animals such as foxes and hares moult, turning their colourful coats white to camouflage themselves in the snow. Cameras follow wildlife such as American red squirrels, who battle to hang onto food caches. Meanwhile, on the treeless plains, ancient musk ox are forced to search for theirs