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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

This Old Tubeworm

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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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A walrus sits on top of ice.
Article

The Cultural Icescapes of the Arctic

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A photo of a red-colored sea anemone photographed in the Baltic Sea.
Photo

Urticina Felina, a Baltic Sea Anemone

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The robotic underwater glider Scarlet Knight crossed the Atlantic over the course of several months in 2009.
Article

Underwater Robots Explore the Ocean

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Two nurse sharks hover over a baited cage
Lesson Plan

Deep Lights

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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Oceanographers divide the ocean into three broad zones, each with different species.
Photo

Zones of the Open Ocean

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Sea lion with data collector on back.
Photo

Sea lion with data collector on back

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A marine biologist measures the temperature of an ice core.
Photo

Measuring Ice Core Temperatures

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Two men each hold a ceramic vessel at the archaeological excavation
Article

Archaeologists Study Early Whaling Community in Quebec, Canada

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