The most common animals found in the tundra are the caribou, reindeer, and the lemming. The tundra is the coldest and the driest of all the biomes on Earth. This biome lies above the Arctic Ocean in the world's highest northern latitudes. The tundra covers about one fifth of the land surface found on Earth. These low swampy plains are found in Northern Europe, Siberia, Northern most part of North America, and a few places in the southern hemisphere.
All locations reach low temperatures that can freeze on any night, even in the tropical locations.
The summers in the tundra are short. The tundra experiences 24 hour long days. In the summer the soil becomes very soggy because of the melted permafrost. In the winter the weather can reach -50 degrees fahrenheit. The precipitation received in this biome is less than ten inches a year.