The discovery of the fossil, nicknamed "Teen Rex," was announced on Tuesday by the Denver Museum of Nature & Science, where it will be studied and displayed.

The Denver Museum of Nature & Science is preparing to display one of the rarest dinosaur fossils ever discovered.

Scientists determined Tyrannosaurus rex had a body temperature around 97.3 degrees Fahrenheit. This was calculated by analyzing chemical signatures within the dinosaur's fossilized tooth enamel. The ...

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 ...

Tyrannosaurus rex, one of the most fearsome predators in Earth's history, may have had a far more complex social life than ...

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Tyrannosaurus rex is one of the most recognizable names of the dinosaur world, a hulking and terrifying meat-eating behemoth. While fossil remains have been extensively studied, not much is known ...