Explorers discovered a narrow opening in the woods that plummeted around 220 feet into a vertical shaft, transforming a ...

A rock hound found a human skull in a Carbon County cave Sunday, prompting a sheriff’s investigation. Authorities say it may ...

The explorers also found another bracelet, a giant snail shell, and pieces of black stone discs similar to pyrite mirrors—all of it dated to more than 500 years ago. Archaeologists then descended on ...

Scientists explored several lava tubes in Vietnam and found some “bent-toed” creatures in the caves in a first-of-its-kind sighting, photos show. Photo from Nguyen, Tran, Nguyen, Hoang and Nguyen ...