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

Seashells tend to appear quietly. After the tide pulls back, they are just there, mixed into the sand, sometimes whole, sometimes worn thin. They do n.

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 ...

Archaeologists in the United Arab Emirates found hundreds of seashell fragments left from a craft workshop at an ancient desert oasis settlement, a study said. Photo from T. Sagory Waves splash along ...