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A transparent amphipod looks a bit like a lobster, surrounded by white eggs.
Photo

Amphipod: Salp Invader

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Two nurse sharks hover over a baited cage
Lesson Plan

Head to Foot

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A summertime channel carries melted ice to the sea. Antarctica and Greenland lose around 350 billion tons of ice each year from such melting.
Photo

Ice Melt at the Poles

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X-ray image of a long-spined porcupine fish
Photo

X-Ray Image of a Long-Spined Porcupine Fish

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This copepod (Gaussia princeps) was collected deeper than 1000 meters in the Sargasso Sea by Census of Marine Zooplankton (CMarZ) researchers in April 2006.
Photo

Deep Sea Copepod

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Slideshow

Describing New Deep-Sea Corals and Sponges

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A team of scientists explore the Arctic ocean.
Slideshow

Under Arctic Ice

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Aegina, a type of jellyfish, swims through the water.
Slideshow

The Surprising Elegance of Midwater Sea Life

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A thin layer of oil on the water's surface, reflecting rainbow colors
Timeline

Gulf of Mexico Oil Spill Milestones

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“On an afternoon dive, I spotted a small group of sweetlips in the current among a shoal of juvenile convict blennies. It took me some time to get close to the fish without spooking them. I took several frames but this one was my favorite because of the
Slideshow

Ocean Fish Pictures

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A photo of Oceana's ice class research vessel, the Hanse Explorer, on the Baltic Sea.
Slideshow

Biodiversity in the Baltic Sea

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An artistic rendering of an ocean landscape as it may have looked during the Archean Eon.
Slideshow

The Ocean Throughout Geologic Time, An Image Gallery

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