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A small Adélie penguin hops on a piece of ice.
Photo

Adélie Penguin Jumping Out of the Water

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Chrysaora melanaster is a jellyfish found in the Arctic.
Photo

Arctic Sea Jelly

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A narwhal breaches the surface, its tusk pointed to the sky
Article

Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

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Looking through this iceberg's reflection in the Antarctic water, you can see the iceberg below the surface—some 90% of its total volume.
Overview

The Arctic and The Antarctic

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A team of scientists explore the Arctic ocean.
Slideshow

Under Arctic Ice

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Two nurse sharks hover over a baited cage
Lesson Plan

Realms of the Arctic Ocean: pelagic, benthic and sea ice

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Two nurse sharks hover over a baited cage
Lesson Plan

Expedition to the Poles

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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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Two nurse sharks hover over a baited cage
Lesson Plan

Benthic Communities of the Arctic Ocean

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The Ross Sea is a 1.9 million square mile (3.6 million square km) stretch of ocean off the coast of Antarctica.
Slideshow

A Trip South to Antarctica’s Ross Sea

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Human activity is increasing in the Arctic marine environment due to climate change. To help the most vulnerable areas, the Global Marine Program of IUCN, along with partners, is convening a series of workshops aimed at enhancing ecosystem-based management and identifying biologically or ecologically important or vulnerable habitats. Burgerbukta, a bay in Svalbard, Norway, is being managed for ecosystem protection.
Article

What is the Sea Ice Minimum? (And Why Do We Care)

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This recently discovered hairy crab species (Kiwa hirsuta) has no eyes.
Overview

The Census of Marine Life

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