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

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

It took the fearsome T rex 40 years to reach its full size, study finds - Findings extend growth phase of T rex by 15 years ...

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

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

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

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

A study of fossil bones shows Tyrannosaurus rex kept growing until around age 40, challenging long-held ideas about dinosaur ...

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 ...