The discovery of a sea sponge missing from the fossil record sheds light on a mystery that's stumped scientists for years.

MIT researchers show a promising plan for using clean-burning hydrogen in place of the diesel fuel now used in most freight-transport trucks.

The discovery, published in Nature, opens a new window on early animal evolution.

Researchers have discovered a new species of sauropodomorphs, a dino that lived 210 million years ago. It's the fourth dinosaur species found in Zimbabwe.

A nondescript mass of bone and teeth helped expand the geographic footprint of a large cat that lived tens of thousands of years ago.

Understanding more about feathers could change the way we think about dinosaurs.

Starfish reproduce by splitting in two. A new fossil reveals how ancient this ability is.

Such massive disruptions have in the past been caused by volcanoes or meteorites. Only humans have done this with full awareness of their actions.

Evidence suggests saber-toothed cats held onto their baby teeth to stabilize their sabers, researchers report.

Lawsuits are inevitable, but an environmental lawyer explains why the EPA’s new power plant regulations are on solid ground.