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Zooplankton
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These are some the many species of plankton animals scientists found in the North Atlantic Ocean, some from surface waters and some from great depths. An international team of experts identified each species with taxonomic and molecular methods, sequencing their DNA at sea.
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This squid, called Histioteuthis sp., is about six inches long, and lives in the midwater depths, nearly 1,000 meters (3,000 feet) down. Its skin is covered with spots, called chromatophores, that let it change color at will. Interestingly, its two well-developed eyes are two different sizes. (Larry Madin, Woods Hole Oceanographic Institution)

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Posted: February 28, 2012

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