(..) separated from its mother. The calf is young, but it can outrun the wolf if only it manages to keep its footing. At this stage the odds are even - either the caribou will make a mistake or after a mile the wolf will give up. Midsummer on the tundra and the sun does not set. At these latitudes (..)

(..) almost cleared from the Arctic tundra. Northern Canada's wild frontier. Here nature stages one of her greatest dramas - Every year three million caribou migrate across the Arctic tundra. The immensity of the herd can only be properly appreciated from the air. Some herds travel over miles (..)