Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study ...

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Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study led by UCL ...

Around 70 million years ago, Earth’s largest predators were dominating continents, driven by an extraordinary evolutionary shift. Recent findings clarify why dinosaurs like Tyrannosaurus rex and ...

(CN) — A fossil long at the center of one of paleontology’s fiercest debates has finally given up its secret, and it’s rewriting what scientists know about Tyrannosaurus rex. Researchers studying the ...

Darla Zelenitsky (right) and Jared Voris (left) were part of the team that identified and named Khankhuuluu based on fossils found in Mongolia during the 1970s. Riley Brandt / University of Calgary A ...

Tyrannosaurus rex is still the biggest, baddest land predator of all time. It was the size of a city bus, with a head almost as long as Tom Cruise is tall and a smile every bit as devastating.

Why T. rex was different Tyrannosaurids had stiff, akinetic skulls—meaning the joints allowed almost no movement. Combined with deep skulls, thick bone, and massive jaw muscles, this design produced ...

Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive apex ...

The piece illustrates the disparity of the Northern and Southern hemisphere’s evolution of terrestrial Cretaceous faunas after the Cretaceous Thermal Maximum. On the left, End Cretaceous Southern ...