Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges ...

The marketing pitch for Florida’s Sanibel and Captiva islands is “250 Kinds of Shells, 250 Miles of Bike Paths, 15 Miles of Beaches.” With shells getting the top billing over the islands’ many scenic ...

Beachcombers know that seashells appear in an endless array of colors and shapes, and researchers have just discovered that this variation extends to the molecular level. In fact, each shell is as ...

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. The study is the first ...

Mollusk fossils provide a reliable measure of human-driven changes in marine ecosystems and shifts in ocean biodiversity across time and space, new research shows. A University of Florida study shows ...