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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

September 2014

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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

August 2017

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Aerial view of two bowhead whales swimming in the ocean.

Audio

Bowhead Whale: One Species at a Time

October 2010

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