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A whale shark swimming in the water.
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Tagging Along With Whale Sharks

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“The southern elephant seal is a truly restrained behemoth. Males can grow to be five times larger than females, up to 5,000 pounds. This elephant seal may look fierce, but he was simply yawning over and over in the wave-wash. This allowed me to try mult
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Southern Elephant Seal, Gold Harbour, South Georgia

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It's a pygmy seahorse (Hippocampus bargibanti), found in Indonesia's biodiverse Coral Triangle and one of the smallest seahorse species in the world! They can change colors like a chameleon to blend into their environment. This helps to protect them from p
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Can You Spot the Seahorse?

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Spiral-tufted bryozoan
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A Bryozoan's Medical Endosymbiont

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A researcher takes notes at the site of an ancient shipwreck recently discovered in Mazotas, Cyprus. The ship went down in the 4th century B.C. loaded with expensive and sought-after wine from Greece.
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Cyprus Shipwreck Discovery

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The National Museum of Natural History's Department of Invertebrate Zoology has developed an online map that provides information about invertebrates in the National Collection from areas impacted by the oil spill.
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Google map of invertebrates in oil spill region

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When it comes to many of our once-favorite seafoods, there aren't always plenty more fish in the sea. In fact, some studies estimate that up to 90 percent of large predatory fish have disappeared since humans began heavy fishing.
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Be a Picky Eater

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Japanese scientists videotaped this female giant squid, alive, at the water's surface
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Caught on Video: Giant Squid

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Relatively slow moving, juvenile plane-head filefish Monacanthus hispidus (Monacanthidae) travel along with the algae. They pick off and eat small animals as they move around in the rotating sargassum ball. Adult filefish only grow to be about 11
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Juvenile plane-head filefish

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Nuclear bomb in Bikini Atoll
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Nuclear Bombs on the Coral Reef

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Squid expert Dr. Clyde Roper examines specimens stored in jars in the Smithsonian collection.
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Dr. Clyde Roper

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Tropical hatchetfish, like the one shown in this X-ray photograph, live in the dark depths of the ocean. Like many other deep-sea fishes, they have large eyes and bioluminescent spots on their bellies.
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X-Ray Image of a Tropical Hatchetfish

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