Not many kinds of animals live year-round in the Arctic tundra. Most birds and mammals only use the tundra as a summer home. Mammals that do live year-round in the tundra include the muskox, Arctic wolf, and brown bear; and each has its own way of adapting to the extreme climatic conditions. Animals need to find ways to stay warm and to provide nourishment for themselves in order to survive the long, cold, winter months.
Animal adaptations
The word "adaptation" means to change to fit a new environment or different conditions. For example, an adaptation used by the Musk Ox is the growth of two layers of fur--one short and the other long. Animals must find a way to survive in the tundra.
Animal list
These are just some of the animals who live in the tundra.
Caribou Ruddy Turnstone
Polar Bear Snow Bunting
Arctic Lemmings Snowy Owl
Gyrfalcon Arctic Fox
Ermine Arctic Wolf
Musk Oxen Ptarmigan
Tundra Swan Weasel
Harp seal Narwhals
Here is a video about arctic tundra animals. These are just some animals;