MARINE BIOLOGY
'(<a href="http://www.j-archive.com/media/2011-06-02_DJ_18.jpg" target="_blank">Lindblad National Geographic underwater specialist Lisa trotter delivers the clue from Antarctica.</a>) This shrimp-like crustacean is a major link in the Antarctic food chain; from January to April swarms of them may reach concentrations of 35 lbs. per cubic yard'
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