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Photo Essay
Under Antarctic Ice
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 ©2003 Norbert Wu/www.norbertwu.com

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This medusa (Periphylla periphylla) is found worldwide, but usually in deep water. In most parts of the world it is found near the surface only at night, but diving in Antarctica is equivalent to diving at night. In the background is the dimpled surface of the iceberg.

--Norbert Wu