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Arctic tundras are vast, treeless landscapes found in the Earth's polar regions, characterized by low temperatures, permafrost, and a short growing season. These regions are covered by a layer of snow and ice for much of the year, with only hardy vegetation such as mosses, lichens, and low-growing shrubs able to survive in the harsh conditions. Arctic tundras are home to a variety of unique wildlife species adapted to the cold climate, including polar bears, caribou, Arctic foxes, and snowy owls. The extreme conditions of the Arctic tundra make it a challenging environment for both plants and animals, requiring specialized adaptations for survival.