The reindeer, known as caribou in North America, is an Arctic and Subarctic-dwelling deer. In the wild, caribou migrate in large herds between their birthing habitat and their winter habitat. Their wide hooves help the animal move through snow and tundra; they also help propel the animal when it swims. The Barren-ground Caribou, shown here, is found in northern Canada and known for its whiter coat. Photo credit: brian0918 |