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

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

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 ...

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