For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more ...

The National Park Service has announced another ancient shark discovery at Mammoth Cave in Kentucky. The latest find, named ...

A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said.

This rib bone discovered in a cave in the Spanish Pyrenees tells a story of Bronze Age violence. But who fired the shot?

Carlsbad Caverns National Park in New Mexico is home to one of the most impressive cave systems in the world. Below you ...

A tiny shark species dating back hundreds of millions of years has been identified at Mammoth Cave National Park in Kentucky, the National Park Service announced Monday.. The identification was ...