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The "Lower Invertebrates" exhibit in Smithsonian Institution Building in 1901 included models of a giant squid and an octopus.
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More Than a Century of Smithsonian Marine Science

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Coral Head Near Pearl and Hermes Atoll, Hawaii
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Pearl and Hermes Atoll Coral

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A landscape photo of a shoreline with tall grass-like plants lining the water's edge.
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Phragmites australis

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Home is where the hull is: Since the dawn of seafaring, humankind has had to deal with pesky creatures, such as barnacles, that “foul” ship hulls and boat propellers like this one.
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Boat Propeller Fouled With Barnacles

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Tiny "flakes" of marine snow.
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A Snowy Underwater Wonderland

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Three Killer whales (Orca) swim along side researchers.
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Researchers Studying Killer Whales

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Close-up photograph of the face of a blue footed booby.
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Blue-footed Booby

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Oil from the Deepwater Horizon oil spill in the Gulf of Mexico impacts the coast at Pass a Loutre, La.
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Oil on blue gloved hand

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a display case of red coral jewelry containing necklaces, earrings, bracelets, and rings
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Avoid Coral Jewelry

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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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The “Dumbo Octopod” swims by moving its fins, pulsing its webbed arms, or pushing water through its funnel for jet propulsion.
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Grimpoteuthis, The Dumbo Octopus

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Two divers prepare to explore the Lusitania shipwreck in 1935.
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Divers Explore the Lusitania Shipwreck

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