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Collared Lemming |
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| The collared lemming is a small rodent that is widely distributed throughout tundra regions of the northern hemisphere. Lemmings provide the best-known example of irruption—a type of migratory cycle that occurs in extreme climates. | ||||||
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| Tom McHugh/Photo Researchers, Inc. | ||||||
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| Appears in these articles: | ||||||
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| Lemming; Animal Migration | ||||||
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