Named the best shelling spot in North America by Travel + Leisure magazine, Sanibel Island—located near Fort Myers on the Gulf of Mexico—is a true haven for seashell-spotting enthusiasts. “It turns ...

National Seashell Day may be over, but you can enjoy combing the beach for shells and shark teeth any day — every day, if you'd like. Just leave some behind for the other shell hunters. The Palm ...

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