A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth's magnetic field that let more ...

What roils beneath Earth's surface may feel a world away, but the activity can help forge land masses that dictate ocean circulation, climate patterns, and even animal activity and evolution. In fact, ...

Isotope analysis of limestone cave deposits indicates repeated humid periods in the Saharo-Arabian Desert over the past eight ...

Researchers have discovered fossil human footprints embedded in an ancient lakebed that show humans inhabited North America ...