Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Archaeologists ...

The purplish shells of quahogs, treasured in the past by Native Americans, now appear alongside gold, mother-of-pearl and onyx. By Jill Newman For centuries Native Americans treasured quahog shells, ...

Collage by Tilden Bissell for W magazine. For me, there’s no better feeling than breaking out my new summer wardrobe when hot weather finally hits. This season is shaping up to be filled with ...

A great irony of pearl history is that the least expensive cultured pearl product in the market today rivals the quality of the most expensive natural pearls ever found. The price-value anomaly is ...