A groundbreaking analysis of the ‘Dueling Dinosaurs’ fossil has finally resolved a long-standing mystery in the world of ...

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's ...

A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

Everything scientists believed about the T-Rex could be wrong after a study proved the existence of its smaller cousin.

A Montana fossil reveals that Nanotyrannus, once thought to be a young T. rex, was actually a full-grown predator and it's ...

Palaeontologists have argued for decades over whether certain fossils are young Tyrannosaurus rex or another species entirely ...

There are literally decades of research... based on a premise that this article overturns,” said one paleontologist.

A fossil of two dinosaurs locked in battle shows the smaller of the pair wasn’t a young T. rex but a full-grown predator of ...

Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...

Nanotyrannus lethaeus was a fast, agile predator distinct from T. rex, with longer legs, stronger arms and a body built for ...

How did these different dinosaur species interact? Did they hunt different prey? What did T. rex adolescence really look like ...