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

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

T.rex lived longer and took more time to reach its maximum size than previously thought, according to new research.

Scientists believe they now know the true lifespan of the Tyrannosaurus rex, rewriting what was known about the ancient ...

For decades, scientists have been counting annual growth rings, similar to tree rings, found inside fossilized leg bones of Tyrannosaurus rex to estimate how old the giant carnivores were when ...

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

Now, a new study of 17 tyrannosaur specimens, ranging from early juveniles to massive adults, has revealed that the king of ...

A comprehensive analysis of Tyrannosaurus rex fossils is surprising scientists with just how long these apex predators took ...

A new study reveals that the Tyrannosaurus rex took up to 40 years to fully grow.

A study suggests that the Tyrannosaurus Rex reached its massive size over 40 years, contradicting earlier estimates of a ...

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