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

They also don’t hear the blood going through their veins, although that is a popular misconception. What is it exactly that causes the roaring sound when the shell gets close to your ear? Children are ...

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 ...

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

A sea turtle’s shell is living bone fused directly to its spine and ribs. It is not a detachable shield or an external case, ...

Ask people who have strolled the Gulf Coast beaches of Florida and they'll tell you "shelling" is a serious pastime, with thousands of beachgoers sifting daily though miles of shells left behind by ...