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Antarctic Lemming

An Antarctic lemming, Henry's lemming (Antartcicocherus Henricus ), in the grasslands of Antarctica.

The Antarctic lemming is a species of lemming-like cavy that is native to Antarctica. It has antifreeze in its blood to survive the cold. It is an omnivore. It fills a similar niche to lemmings, marmots, ground squirrels, dormice, mice, and rats. It is descended from a group of prehistoric rock cavy-like rodents that made their way into Antarctica and evolved into omnivorous lemming-like rodents.