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The Arctic tundra is a vast, treeless region found primarily north of the Arctic Circle. It is characterized by low-lying vegetation like mosses, lichens, and small shrubs, growing on largely bare ground and rock. A key feature of the Arctic tundra is permafrost, which is ground that remains frozen year-round, though a surface layer thaws in the summer. This freeze-thaw cycle significantly shapes the landscape and distinguishes it from adjacent ecosystems. The tundra supports a unique, though limited, variety of animals adapted to its harsh conditions.1234

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