For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more ...

Funny dog Maymo is pranked by his owner who is wearing a T-Rex dinosaur costume. The dancing dino enters the living room and ...

A fossil of Manipulonyx reshetovi, found in a Mongolian desert, shows how the dinosaur used its specialized claw to snatch ...

By cutting into a tiny throat bone, Princeton's Chris Griffin showed that it belonged to an adult of a smaller tyrannosauroid ...

Whether carnivorous dinosaurs had lips has long been the stuff of paleo-debate. A new study finds evidence that flesh covered the predators’ teeth. Tyrannosaurus rex and other carnivorous dinosaurs ...

LEONIA — Shades of "Jurassic Park." A 16-foot tall T-Rex is busting out of its home and could soon be towering over the borough. The owner of Field Station: Dinosaurs, the exhibit in Overpeck County ...

For many years, paleontologists have debated about whether there was a smaller relative of the Tyrannosaurus rex, or if those smaller fossils were really just awkward teenage versions of the king of ...

Researchers now identify the "dueling dinosaur" tyrannosaur as an adult Nanotyrannus, not T. rex. "This fossil...flips decades of T. rex research on its head," says Lindsay Zanno. Study reveals ...

(TMX) - A fossil once locked in prehistoric combat has just rewritten one of paleontology’s longest-running debates — and upended what scientists thought they knew about Tyrannosaurus rex. The ...

Two dinosaurs fossilized in combat, originally thought to involve a juvenile Tyrannosaurus rex testing its mettle against a Triceratops, actually feature a separate species frequently confused with ...

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 ...