Paleontologists have often determined how old a dinosaur was by counting the growth rings in its bones. Just like with trees, ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have discovered a new dinosaur from Argentina with powerful claws, feasting on an ancient crocodile bone. The new find ...

In biology and paleontology (the study of extinct organisms) there are a few ways to estimate the age of an animal's skeleton ...

A research team led by Dr. Márton Rabi from the Biogeology Department of the University of Tübingen, together with Máté ...

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 ...