Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical ...

Also, only exit the pool from the way you came in. Walking along the outside can be dangerous, especially considering that the water isn’t always swimmable. The Animal Flower Cave is open ...

Fluorescent caves on Earth may hold the secrets to survival necessary for scientists to detect life elsewhere in the universe.

In the arid mountains of northern Oman, rocky caves hold pools of water. Naturalists were exploring these subterranean lakes in the Al-Hoota cave in 1980 when they discovered a white, eyeless fish.

Beneath the land surface of the Bahamas, the underwater caves known as blue holes stretch ... and long legs that help them navigate through water-logged vegetation. Today, other flightless members ...

Emily shows William how the water from the waterfall has shaped the rocks. The explorers travel further into the cave. William Whiskerson: What's this, Tom? Tom: This, William, is a gower pool.