Some animals living in the arctic tundra are the Arctic Fox, Caribou, Ermine, Grizzly Bear, Harlequin Duck, Musk Ox, Polar Bear, and the Snowy Owl. The Arctic Fox makes its home in small burrows in frost- free ground, often in low mounds, or in rock piles. The Caribou lives in the arctic tundra, mountain tundra, northern forests of North America, Greenland, Scandinavia, and Russia. The Ermine is found all over Canada, Northern America, and Eurasia. Ermine like to inhabit marshes, open spaces, or rocky areas next to woodlands. The Grizzly Bear can be found on the Alaskan and Northwestern Canadian Tundra. The grizzly bear's habitat can include, forests, mountains, meadows, and valleys. The Harlequin Duck has a buoyant, compact body, with strong webbed feet, which give the duck the power to swim through torrent waters. The Musk Ox lies in the frozen tundra of Northern Alaska, Canada, Ellesmere Island, Greenland, Norway, Sweden, and Siberia. They can live in harsh conditions of the arctic tundra because of it's 24 inch long hair and woolly undercoat. The Polar Bear can be found all through the polar regions of the Northern hemisphere. They are also the largest carnivore on land. The Snowy Owl weighs 4-6 pounds, 21 inches- 26 inches in length. They're wing span is 4.7 feet-5.4 feet in width.