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An illustration of two narwals, one with two tusks
Photo

Two Tusked Narwhal

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A dive tender monitors divers below the ice.
Photo

US Coast Guard Cutter HEALY

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Two nurse sharks hover over a baited cage
Lesson Plan

Burp Under the Ice

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The dark sea floor of the Antarctic, beneath sea ice, is covered with life.
Photo

Antarctic Ocean Floor

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A walrus sits on a floating piece of ice.
Photo

Walrus on Ice

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Jellies in the Class Hydrozoa are transparent and easily overlooked.
Photo

Transparent sea jelly

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A humpback whale breaching in Antarctic waters.
Photo

Humpback Whale in Antarctic Waters

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Aerial view of two bowhead whales swimming in the ocean.
Audio

Bowhead Whale: One Species at a Time

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Two nurse sharks hover over a baited cage
Lesson Plan

Biomes: Wild Arctic

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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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