A new study reveals Tyrannosaurus rex took 40 years to reach full size, not 30, as previously thought. Researchers analyzed ...

Pioneering techniques used in this research may soon be applied to other dinosaur fossils and alter the course of ...

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study ...

By Will Dunham WASHINGTON, Jan 15 (Reuters) - There is no question that Tyrannosaurus rex got big. In fact, this fearsome ...

Previous studies of T. rex growth rings concluded they grew until around the age of 25, and then stopped. This was more of a ...

Dr Holly Ballard and her team at Oklahoma State University studied leg bones from 17 different T.rex fossils to get a better ...

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

CHICAGO--For the first time, scientists have determined the lifelong growth pattern for the Tyrannosaurus rex. T. rex reached its massive adult size due to an extraordinary growth spurt that stretched ...

Dinosaurs haven’t roamed the Earth for millions of years, but the nature of their reign has sparked no shortage of controversial debates among paleontologists that remain unresolved today. Late last ...