Seashells are abundant along coastlines, originating from mollusks that construct exoskeletons for protection. Comprised mainly of calcium carbonate, these shells possess enduring qualities that make ...

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

Fossil seashells in New York’s streambeds aren’t just cool finds - they’re clues to a time when the entire region was buried under a prehistoric sea. These imprints helped scientists rewrite Earth’s ...