The ancestry of the king of dinosaurs -- Tyrannosaurus rex-- has long puzzled scientists due to a 20-million-year gap in fossil record. A newly discovered mini tyrannosaur, however, sheds light on how ...

A controversial dinosaur fossil previously believed to be a juvenile Tyrannosaurus rex is in fact a different species altogether — the Nanotyrannus — a new study suggests. The research has up-ended ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Tyrannosaurus rex is best known as the carnivorous king of the ...

When it came to the sense of smell among meat-eating dinosaurs, Tyrannosaurus rex nosed out the competition. Scientists at the University of Calgary and the Royal Tyrrell Museum in Alberta, Canada, ...

Tyrannosaurus rex just got a firm grip on the animal kingdom's family tree, right next to chickens and ostriches. New analyses of soft tissue from a T.rex leg bone re-confirm that birds are dinosaurs' ...

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 ...