More than 66 million years ago, a “tyrant lizard king” ruled western North America: the fearsome predatory dinosaur Tyrannosaurus rex. But how large was this monarch’s royal family?

A new study finds evidence that flesh covered the predators’ teeth. Tyrannosaurus rex and other carnivorous dinosaurs likely had soft tissue that covered their sharp teeth, as seen in this ...

For more than a decade, paleontologists have speculated about a single fossil that preserves skeletons of two of the world’s most famous dinosaurs, Tyrannosaurus rex and Triceratops. Not only ...

Simulations calculated Tyrannosaurus speed from the motion of its swaying tail, finding that the massive dinosaur was a ...

T. rex evolved in North America from Asian ancestors. Climate shifts and extinction events helped tyrannosaurids and ...

The end Cretaceous Northern Hemisphere fauna was dominated by Tyrannosaurids (such as Tyrannosaurus rex), hadrosaurs and ceratopsian ornithischian dinosaurs. (Image Credit: Pedro Salas and Sergey ...

SUE the T-rex: also known as Specimen FMNH PR 2081, legendary fossil, very dead and uses they/them pronouns – at least according to their Twitter bio. 67 million years ago, SUE was a massive ...

The next time you go shopping for a new purse, your choices could go beyond traditional materials such as leather, nylon, cotton and polyester to include … Tyrannosaurus rex skin? Yes ...

Wong and his colleague Gordon Yong, an entomologist at the National University of Singapore ... In addition, T. rex has a fairly robust stinger it’s not afraid to use. At one point during ...

Paleontologists have long debated the origins of one of the most iconic dinosaurs, the Tyrannosaurus rex. While many fossils have been found in North America, some researchers questioned whether the ...

This story is part of the National Geographic 33. A pioneer of big-mountain snowboarding, Jeremy Jones watched as helicopters made remote backcountry runs suddenly reachable, enabling access to ...

Cassius explains that the T. rex precursors - tyrannosaurids - likely crossed a land bridge across the Bering Strait between modern-day Siberia and Alaska. Due to how few tyrannosaurids there were ...