Fewer Tyrannosaurus rex fossils are available for scientific research because wealthy people are purchasing them for private collections, a new study has found. "The early growth stages of T. rex are ...

More than half of the world's scientifically useful T. rexes are in the hands of private or commercial owners, and not accessible to scientists, according to research. Reading time 3 minutes ...

“Of the giant carnivore dinosaurs, T. rex is the one we know the most about because it has a pretty good fossil record,” Rowe says. There are many complete skulls which have already been scanned and ...

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 ...

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

Then you look closer and notice the detail: how the ribs are built at different lengths to create a rib "cage," how the dark-colored bricks create the illusion of shadow and throw the light-colored ...

The 67 million-year-old fossils were found in Hell Creek Formation in Montana. Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...