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With their brown and yellow markings, seaside sparrows (Ammodramus maritimus) blend in well with marshgrass.
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Seaside Sparrow Perches on Grass

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An archaeologist arranges a deep-sea core.
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Sediment Cores

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An array of teeth from ragged tooth sharks.
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Smithsonian Shark Teeth collection

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Spotfin lionfish in Caribbean waters
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Spotfin Lionfish

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A photo of a red-colored sea anemone photographed in the Baltic Sea.
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Urticina Felina, a Baltic Sea Anemone

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A small, brown eelpout fish.
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Adolf’s Eelpout

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Comb jellies have fragile bodies and are difficult to capture.
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Fragile Comb Jelly

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This tentacle was left behind by the first giant squid caught on film.
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Squid Tentacle

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Marc Frischer from the Skidaway Institute of Oceanography studies bacteria at a Smithsonian field station.
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Investigating Bacteria

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Seagrasses don't just provide shelter for free-swimming animals, but also are a habitat for non-moving organisms, such as these sea anemones.
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Anemone on Seagrass Blade

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A bright yellow long-snouted seahorse.
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A Cold-Water Seahorse

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John Paxton, a scientist who studies marine life, looks into a microscope
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Sleuth at Sea

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