The shelled sea butterfly Hyalocylis striata can be found in the warm surface waters of the ocean around the world. © Karen Osborn The chemistry of the ocean is ...

Sea shells are abundant on the New Jersey shores. There are the black ridged scallop shells that look like accordion fans, the pretty and delicate spiral shells that come in various patterns and ...

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

In Massachusetts, common blue mussels may not have the star power of Wellfleet oysters or the charisma of quahogs. But like all shellfish they play an important role in marine ecosystems. Mussels are ...

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 ...

Scientists have sorted and studied thousands of clam shells to build a 1,000-year record of ocean conditions and climate changes at a spot just off North Iceland. Alan Wanamaker, working as a ...

Have you heard of periwinkles? Not the color, but the sea snail making like tiny X-Men and evolving at superspeeds to heroically survive the next century of climate change. Their newfound powers might ...

In a troubling new discovery, scientists studying ocean waters off California, Oregon and Washington have found the first evidence that increasing acidity in the ocean is dissolving the shells of a ...