Sea butterflies flit through the ocean on gossamer wings, each species with a style of its own. These tiny marine snails, or thecosomes, migrate up to surface waters at night to feed and sink to ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Until recently, the main threat to the lives ...

A collection of fossil shells from marine snails and clams is challenging a theory that says the world’s deadliest mass extinction was accompanied by severe ocean acidification. Instead of showing ...

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A student was enjoying a sunset stroll on a beach in La Jolla, California, when she came across something very rare. Anya Stajner, a Ph.D. student at UC San Diego’s Scripps Institution of Oceanography ...

The striking purple sea snail (Janthina) found after washing up on a beach in La Jolla, California. (Image: Natural History Museum) A rare purple Janthina sea snail washed up on La Jolla beach, ...

Snails have shells the moment they're born, but it's kind of hard to tell. In fact, it's hard to even see a baby snail. Some are nearly microscopic, such as Angustopila psammion, whose adult-sized ...