Caves

More than 3,000 feet below ground, a new snail species has been discovered with a delicate, translucent shell.

Tackling this 2,000-year-old mystery takes a large and diverse set of experts.

The newly discovered labyrinth bugs were found in Kartchner Caverns State Park.

Now-extinct carnivores, such as saber-toothed cats, were lured to enter a deadly underground cave by the smell of rotting carcasses

These fish don't compensate for blindness with improved hearing.

The Greek cave collapsed and killed hundreds of people living there 9,000 years ago.

Explorers uncover deepest pit ever found in Lechuguilla Cave.

From crystal caves to never-ending lightning storms, here are some of the wildest and most unique spots on the planet.

Photographs of cave formations around the world.

Modern polar bears all seem to share some genes. It just so happens these genes come from an Irish brown bear living over 20,000 years ago.