tundra biome
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The tundra biome is a region characterized by cold temperatures and a lack of trees. It is typically found in the Arctic regions of the world, including parts of Russia, Canada, Alaska, and Greenland. The tundra is characterized by low-lying vegetation, such as mosses, lichens, and small shrubs, as well as permafrost, which is a layer of frozen soil that persists year-round. The tundra is home to a variety of wildlife, including polar bears, arctic foxes, caribou, and musk oxen. Despite its harsh climate, the tundra still supports a rich ecosystem, and is an important habitat for many species of plants and animals.