You might notice these small, yellow-white bumps in your baby’s mouth when they yawn. Find out what Epstein pearls are and ...

Researchers have found a "unique" collection of "cave pearls"—some of which contain archaeological artifacts—in an ancient tunnel, a study has reported. Cave pearls are a type of "speleothem ...

What makes these 50 cave pearls so unique is that some of them contain archaeological artifacts, making them the first in the world to contain man-made objects. Cave pearls are a type of ...