Our special video series looks at some of the more unique shells at the Bailey-Matthews National Shell Museum on Sanibel, ...

The Noble Pen Shell, part of the Pinnidae family, is found in the Mediterranean Sea and is the largest of all pen shells, reaching up to 4 feet in size. This shell is known for its beautiful ...

Freshwater mussels are some of the planet's most fascinating and underappreciated animals. With their beautifully colorful shells, diversity of shapes and interesting adornments — including ridges, ...

The cowrie, a type of marine snail, has very colourful shells which were used as money. It seems that it wasn’t just the colours that made the shell appealing - its small size and durability ...

Among the most successful of these are predatory green crabs—small, brightly colored crustaceans that ... In brief: they've grown thicker shells. The paper documents two sets of field ...