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a close up view of the treads on a car tire
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Check the Pressure

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With the sun in its beak, the canoe’s raven figurehead points the way.
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Canoe Figurehead

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These corals are dead—smothered in sediments and overgrown with algae.
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Dead Coral Overgrown with Algae

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Photograph of a green sea slug, with white polka-dot-like markings and white-edged ruffly structures along the length of its back.
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Lettuce Sea Slug

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

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An underwater photo of a school of jacks and a scuba diver
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Bigeye Jacks and Diver Balicasag, Philippines

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A comparison of an undisturbed Oculina coral reef and one that has been devastated by trawling.
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Undisturbed vs. Trawled Reef

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Fossil mosasaur skull and partial skeleton sitting in what looks like the dirt it was excavated from.
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Fossil Mosasaur Skull

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Unlike the green, leafy algae we're used to seeing, coralline algae has a hard crust—which you can see here at the molecular level under a scanning electron microscope.
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Coralline Algae Under the Microscope

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Squalicorax shark fossil from the Smithsonian
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Squalicorax Shark Fossil

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Two researchers, looking for fossil whales, scan a rock formation in Peru's Pisco Basin.
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Searching for Fossil Whales in Peru

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A photo of a candy basslet, an orange and yellow-striped fish.
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Candy Basslet

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