Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles ...

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

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

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

WASHINGTON, April 30 (Reuters) - Surmising even the physical appearance of a dinosaur - or any extinct animal - based on its fossils is a tricky proposition, with so many uncertainties involved.

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

Tyrannosaurus rex is arguably the world’s most famous dinosaur, yet paleontologists are still learning more about this giant ...

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more ...

By counting visible and hidden rings, researchers found that T. rex did not reach full size until 35 to 40 years of age.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The companies want to make luxury goods out of T. rex skin-inspired material. The bag in this ...