Mollusks, Worms, Sponges, Starfish

Frilled Shark

The Scariest Monsters of the Deep Sea

We took the spook-tacular celebration to the depths of the ocean, where some of the craziest—and scariest—looking creatures lurk in the dark

"If we don't do something," says Knowlton, who has earned the nickname Dr. Doom, "we could lose all corals by 2050."

A Coral Reef's Mass Spawning

Understanding how corals reproduce is critical to their survival; Smithsonian's Nancy Knowlton investigates the annual event

As ocean water becomes more acidic, corals and shellfish must spend more energy to make their calcium carbonate shells.

A Swim Through the Ocean's Future

Can a remote, geologically weird island in the South Pacific forecast the fate of coral reefs?

At an 18th-century auction in Amsterdam, Vermeer's Woman in Blue Reading a Letter sold for about one-third the amount that its owner spent to obtain a then rare Conus gloriamaris shell.

Mad About Seashells

Collectors have long prized mollusks for their beautiful exteriors, but for scientists, it’s what inside that matters

Geoduck can be blanched, stir-fried or cooked up in chowder.

How to Cook a Geoduck

It not only doesn't taste like chicken, it's not even poultry. Learn how to cook a geoduck, a large clam

They may not be beautiful, but geoducks fetch a pretty price.

Geoducks: Happy as Clams

In the Pacific Northwest, fishermen are cashing in on the growing yen for geoducks, a funny-looking mollusk turned worldwide delicacy


Foreign Worm Alert

Aliens are tunneling through North America. Who'd have thought these earth tillers have a downside?

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