A new analysis of enigmatic skulls from the Republic of Georgia suggest that Homo erectus wasn't the only human species to ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

Fossilized bones and teeth dating to 773,000 years ago are providing a deeper understanding of the emergence of Homo sapiens.

Scientists drilled to the bottom of Greenland's 1,600-foot deep Prudhoe Dome and found it disappeared in the early Holocene, ...

Rain gauges did not exist millions of years ago. Instead, researchers turn to indirect clues left behind in rocks, soils, and ...

Scientists refine the timeline of sponge origins, showing soft-bodied ancestors likely evolved later than some chemical ...

Oxygen isotopes data enable researchers to look far back into the geologic past and reconstruct the climate of the past. In ...

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

Our planet has a memory. Deep within ice cores and ocean sediments lies evidence of a time when Earth looked fundamentally ...

When most people think of massive snakes, the first one that comes to mind is the anaconda. Anacondas might be the largest ...

Fossils unearthed in Morocco are the first from a little-understood period of human evolution and may be remains of a ...