According to the National Park Service, the cave system is “still being explored with no end in sight.” While Wind Cave ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. McGinnis' nail tooth (Clavusodens mcginnisi) depicted hunting a crustation in a reef-like ...

Deep inside this system is the biggest underground room in America, and getting there is a 9-hour grind through stone, water, ...

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...

A previously unknown species of ancient shark has been discovered in Kentucky's Mammoth Cave National Park, home to the world's longest cave system. The system, which is located in the state's ...

Carlsbad Caverns National Park in southeastern New Mexico is home to 119 known caves, including North America's largest cave chamber, the Big Room. When you purchase through links on our site, we may ...

International research and highly-specialized divers are bringing an underground, underwater world to the surface ...

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...

When the Bluegrass State comes to mind, so does the Kentucky Derby and Kentucky Fried Chicken — but why not the countless scenic attractions the state has to offer? Home to the world's largest cave ...

India's caves are thousands of years old. Some date back to the Stone Age. The earliest people to use caves were from the Mesolithic period. They lived in rock shelters and painted scenes from daily ...