It is no secret that the tyrannosaurus rex was one of the largest carnivorous creatures to walk the earth millions of years ago, but a new study suggests it may have taken the predator decades to ...

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

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

It turns out the mighty T. rex wasn't always so mighty! New research is shedding light on how long it took the "king of the ...

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more slowly than previously thought, and adds to the evidence that they weren't ...

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

A new study of growth patterns in the bones of Tyrannosaurus rex has contradicted previous reports that it stopped growing in ...

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