The largest-ever study of how the “king of dinosaurs” grew shows a much longer, slower path to adulthood than scientists ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

Tyrannosaurus rex roamed the Earth up to 68 million years ago, but paleontologists for about a century had no clues as to where this massive and iconic animal came from. That changed when a jawbone ...