More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, ...

Researchers have discovered that the underside of the North American continent is dripping away in blobs of rock—and that the ...

Over 2,000 years after the first petroglyphs were carved into a boulder found in a New England River, controversy still ...

Scientists must journey to remote islands in the middle of the Bering Sea, braving uncertain conditions, to reach the ...

Geologists have long struggled to understand massive time gaps in Earth’s rock record, where millions—sometimes billions—of ...