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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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An episode of the Encyclopedia of Life's "One Species at a Time" podcast focused on the Greenland shark.
Audio

Greenland Shark: One Species at a Time

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The Greenland glacier Jakobshavn Isbrae is massive, at around 40 miles long and more than a mile thick.
Article

Up Close and Personal With the Fastest Glacier in the World

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A red and white colored bristle worm swims in the water column.
Photo

A Striped Deep Sea Worm

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In 2011, storms and lack of ice-cover due to a warmer winter climate resulted in hundreds of seal pups being washed up on the shore of Prince Edward Island. Like many, this young seal faced an uncertain future. See more Nature's Best Photos.
Article

Ice-Loving Seals and the Loss of Sea Ice

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A walrus sits on top of ice.
Article

The Cultural Icescapes of the Arctic

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Fish have certain adaptations, like blood with built-in antifreeze, to survive in the Antarctic.
Photo

Fish Adapt to Icy Water

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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 pair of sea butterflies float in the Arctic ocean.
Photo

A Pair of Sea Butterflies

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Polar bears are threatened by a lack of sea ice.
Article

Climate Change at the Poles

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The bowhead whale has a massive, bow-shaped skull.
Photo

Bowhead Whales

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Walruses use sea ice as platforms on which to nurse their young and launch their dives.
Photo

Walrus Rests on Ice

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