A new analysis of tyrannosaur fossils suggests Tyrannosaurus rex may have continued growing until around age 40. The finding ...

The public first viewed a Tyrannosaurus rex (T. rex) skeleton in 1915, and have been fascinated by the “tyrant lizard king” ...

Named the “king of the tyrant lizards,” T. rex was built to rule. Find out how these dinosaurs lived, what made them so ...

New research reveals that Tyrannosaurus rex took 40 years to reach its massive adult size, challenging previous beliefs about ...

Tyrannosaurus rex may have been a much slower grower than scientists realized. A new study of 17 tyrannosaur fossils found that the giant predator likely took about 40 years to reach its full size of ...

Since its discovery in 1902, there’s only been one known type of Tyrannosaurus: the rex. However, a new study says there were three types of Tyrannosaurus, based on differences in fossils' femurs and ...

T. rex teeth — possibly up to six inches long — were thought by many to be too big not to protrude. In recent years, paleontologists have debunked other stereotypical portrayals of the dinosaur. Some ...

The jaw of the Tyrannosaurus Rex had sensitive nerves that may have allowed it to differentiate between parts of its prey, a new study found. By Maria Cramer Was the Tyrannosaurus Rex a foodie? The ...

A new species of tyrannosaur from southern North America that may the closest known relative of Tyrannosaurus rex is described in a study published in Scientific Reports. Sebastian Dalman and ...