Dinosaur DNA may still be out of reach, but scientists are uncovering something almost as exciting—ancient blood vessels ...

Scientists found preserved blood vessel structures in a T. rex fossil, offering new insight into dinosaur healing and fossilization.

Fossils found in New Mexico belong to a previously undiscovered species of small tyrannosauroids that lived 92 million years ago, cousins of the much larger Tyrannosaurus rex. They shed light on how ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Two young brothers and their cousin were ...

A groundbreaking study of Tyrannosaurus rex fossils has rewritten what humans know about these prehistoric predators and how long they lived millions of years ago. A study by three US researchers ...

ALBUQUERQUE, N.M. — Scientists identified a fossil from New Mexico as belonging to a dinosaur that may have been an ancestor of the Tyrannosaurus Rex. The research shows large tyrannosaurs lived in ...

(CNN) — Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study. Scientists have long counted annual growth rings in fossilized ...