Mollusks, Worms, Sponges, Starfish

"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

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Foreign Worm Alert

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

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