T.rex lived longer and took more time to reach its maximum size than previously thought, according to new research.

Cryolophosaurus was one of the earliest large carnivorous dinosaurs, thriving in what was once a cool, forested Antarctica. Fossil evidence shows it stood at the top of the food chain during a ...

Now, a new study of 17 tyrannosaur specimens, ranging from early juveniles to massive adults, has revealed that the king of ...

By applying computational engineering methods to model weight and gravitational forces acting on sauropod femurs, researchers found that these massive four-legged dinosaurs were generally able to stay ...

A comprehensive analysis of Tyrannosaurus rex fossils is surprising scientists with just how long these apex predators took ...

A new study reveals that the Tyrannosaurus rex took up to 40 years to fully grow.

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 ...

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

Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our ...

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