These caves give us a glimpse into the Earth’s ancient history and show off nature’s amazing power and creativity. Here are five of the most breathtaking underwater caves you need to see ...

Take a deep breath and dive below the surface with cave-diving experts and scientists in the video above. Find out what it takes to plunge into the dark and mysterious world of underwater caves. Caves ...

Our goal was to map one of the world’s unique ecosystems: underwater caves, aka “blue holes.” Their biogeochemistry creates hot spots for extremophile life-forms. They also contain fossils ...

A study in PLOS ONE reports and assesses the contents of 25 caves and rock shelters, most of them first identified between ...