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This is an archived article and the information in the article may be outdated.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 ...

Once abundant in California, the white abalone had all but vanished. Now, thanks to an innovative breeding program, it’s staged a remarkable comeback ...

The Hawaiian tiger cowry is one of the largest cowries in the world, and one of Hawai‘i’s most famous shells. Most people have seen them for sale in shell shops, jewelry stores and variety stores, as ...

Beachgoers in San Diego may have spotted some glistening, purple shells reminiscent of small gemstones in the sand recently.

While many people picture small garden snails, some species grow to astonishing sizes and can weigh several pounds. One of ...

Along parts of the Western Australian coast, large shells sometimes lie half buried in tidal mud. They belong to Syrinx aruanus, known as the Australian trumpet and regarded as the largest living sea ...