More species than previously believed live in Polar Sea

''The polar oceans are not biological deserts after all. A marine census released Monday documented 7,500 species in the Antarctic and 5,500 in the Arctic, including several hundred that researchers believe could be new to science.
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As many as 235 species were found in both polar seas, including five whale species, six sea birds and nearly 100 species of crustaceans.'' [source]