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A map of the Mid Ocean Ridge
Photo

Marie Tharp Map

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Where the pH is the lowest, corals can no longer grow - sand, rubble and seagrasses replace the reef.
Article

Sneak Peek: Future of Coral Reefs in an Acidifying Ocean

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Intense volcanic CO2 vents in Ili Ili Bua Bua, Normanby Island, Papua New Guinea.
Slideshow

Will Coral Reefs Survive Acidification?

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Dive through the zones of the ocean to the deep ocean bottom where many strange species live, and there are many yet to be discovered. Explore them in the Deep Ocean Exploration section.
Article

What We DON'T Know About the Deep Sea

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The High Coast in Sweden and the Kvarken Archipelago in Finland were inscribed on the World Heritage List in 2000. The High Coast and the 5,600 islands of the archipelago have been shaped by the combined processes of glaciation, glacial retreat, and the em
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High Coast / Kvarken Archipelago, Sweden & Finland

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Two nurse sharks hover over a baited cage
Lesson Plan

Secrets of the Sediments

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Two nurse sharks hover over a baited cage
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It’s Not Just the Core that Tells the Hole Story

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Two nurse sharks hover over a baited cage
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It’s Sedimentary, My Dear Watson

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Two nurse sharks hover over a baited cage
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Animals of the Fire Ice

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Two nurse sharks hover over a baited cage
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Keep it Complex

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Two nurse sharks hover over a baited cage
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Undersea Geologic Features: Bathymetry

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Two nurse sharks hover over a baited cage
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What Was for Dinner?

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