While exploring caves along a riverbank, a group followed a tunnel that quickly led deep underground. The passage opened into massive chambers filled with crystal formations and towering limestone ...

MEXICO CITY (AP) — A prehistoric skeleton has been found in an intricate underwater cave system along Mexico’s Caribbean coast, an area that flooded at the end of the last ice age 8,000 years ago, ...

An 8,000-year-old skeleton discovered deep within a flooded cave system on Mexico's Caribbean coast is shedding new light on the prehistoric inhabitants of the Yucatán Peninsula. The remains, found by ...

Mystery of prehistoric skeleton found deep in a flooded Mexican cave - Some of the oldest human remains in North America have been discovered in the sinkhole caves known as ‘cenotes’ ...

Archaeologists discovered 8,000-year-old human remains in an underwater cenote cave in Mexico’s Yucatán Peninsula.

After more than six months of preparation and 14 hours underground, a group of cavers has uncovered Australia's deepest known cave, at a depth of 401 metres. The new cave, dubbed "Delta Variant", is ...

Mammoth Cave, located beneath Kentucky’s rolling hills, is the longest known cave system on Earth, extending a staggering 426 miles (686 kilometers). With a history spanning millions of years, this ...

In this handout photo provided by the National Institute of Anthropology and History, underwater archaeologist Octavio del Río takes photos of the remains of a prehistoric human skeleton discovered ...