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 ...

When we picture sea ... these ocean-dwelling titans. Using advanced compression tests and statistical models, the team examined the toughness, stiffness and strength of these turtles' shells ...

The process can take from 30-50 and even up to 100 years or more, depending on ocean currents and tidal conditions. Just like sea glass, there is beach glass ... the sand and shells for a smooth ...