PHOTOS: Odd, Identical Species Found at Both Poles

PHOTOS: Odd, Identical Species Found at Both Poles
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Though found worldwide, the tiny crustacean Gaetanus brevispinus is most commonly collected in polar waters, where its preferred cold-water habitat extends farther toward the surface. This copepod ("oar foot") is among 235 found to live in both Arctic and Antarctic waters, scientists said February 15, 2009.

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—Photograph courtesy Russ Hopcroft, University of Alaska Fairbanks, Census of Marine Life
 
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