Ratno SardiScientists have determined a cave painting depicting what looks to be a hunting scene is more than 44,000 years ...

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles ...

The number of dinosaurs may have been stable before the asteroid impact, despite evidence that species were getting less diverse ...

The idea that dinosaurs were already in decline before an asteroid wiped most of them out 66 million years ago may be ...