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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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Waves breaking on the shore
Overview

Currents, Waves, and Tides

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An image of an ancient Egyptian sailboat painting.
Video

What is Marine Archaeology?

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a Māori woman in a navy blue fleece holds the skull of a beaked whale
Article

Tohunga Tohorā’s Intuition Reveals New Whale Species

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a barnacle sits at the base of a crab's abdomen
Photo

Invading Barnacles

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Methane-eating bacteria (also called methanotrophs) helped clean up the Gulf oil spill, such as Methylococcus capsulatus shown here.
Photo

Oil Spill Methanotroph

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A sailing canoe heads toward an island in the distance at full sail.
Article

Circumnavigating our Changing Oceans

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A sea monster attacks a ship in an illustration for 20,000 Leagues Under the Sea by Jules Verne.
Article

Ray Bradbury and the Sea

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a squid
Article

Meet the Only Squid that Willfully Lops off its Arms

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Aerial image of Hurricane Bill
Article

The Ingredients for a Hurricane

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A pair of sea butterflies float in the Arctic ocean.
Article

Searching for the Ocean Acidification Signal

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arrows represent water movement
Photo

The Ekman Spiral

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