For more than a century, dinosaur eggs have offered haunting snapshots of ancient life, from curled embryos to trampled nests. Now scientists say those fragile shells do something even more surprising ...

In the Cretaceous period, Earth was plagued by widespread volcanic activity, oceanic oxygen depletion events, and mass extinctions. Fossils from that era remain and continue to give scientists clues ...

When paleontologists in China cracked open a set of cannonball sized dinosaur eggs, they did not find bones or embryos. Instead, they uncovered glittering mineral structures, crystal chambers that had ...