Curious Kids is a series for children of all ages. If you have a question you'd like an expert to answer, send it to ...

The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds. By Alexa Robles-Gil Millions of years ago, squid-like creatures called ammonites swam ...

Shells on the beach at Cape Hatteras National Seashore last September. A series of storms in recent months have deposited millions of seashells along the N.C. coast. National Park Service The series ...