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

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 ...

On 12 August 1990, the world's most complete skeleton of a Tyrannosaurus rex was found in South Dakota. Deena Newman speaks ...

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

Scientists have used synchrotron micro-CT imaging to detect branching, vessel-like channels deep within the rib of 'Scotty,' one of the largest Tyrannosaurus rex fossils ever found. The structures ...

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 ...

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 ...

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 ...

Billions of Tyrannosaurus rex roamed North America during their fascinating reign as top predators, according to a team of researchers that went about the daunting task of making the calculation.