Fossils unearthed in New Mexico reveal an ancient crocodile relative that walked on two legs and had a birdlike beak. This ...

Until now, estimating how old a dinosaur was when it died has been a fairly simple process — just count up the growth rings in its fossilized bones. "We always thought that those rings were formed ...

Paleontologists have often determined how old a dinosaur was by counting the growth rings in its bones. Just like with trees, it was thought that each ring corresponded to a single year of age. But ...

Crocodile bones shed light on growth dynamics. Anusuya Chinsamy-Turan In biology and palaeontology (the study of extinct organisms) there are a few ways to estimate the age of an animal’s skeleton.