In the depths of the Hoyo Negro pit 180 feet below sea level, a diving team has successfully recovered the skulls, jaw bones, ...

Hundreds of unusual discs unearthed in Denmark are revealing clues into how a Stone Age population responded to a devastating ...

These trees were once part of a thriving forest, but then the cooling climate entombed them under thick layers of mountain ...

Humans have become a geologic force by cooking the planet — using fire on a scale that is altering land, water, air and ...