T. rex's teeth were up to 7 inches long, and were replaced about every two years, Gignac said. "They were toothy," he said. "For example, the upper jaw alone had more than 30 teeth.

By Will Dunham WASHINGTON (Reuters) - If you want to know the secret behind the success of Tyrannosaurus rex and its meat-eating dinosaur cousins, look no further than their teeth. Scientists on ...

“Preserved blood vessel structures, like we have found in Scotty’s rib bone, appear linked to areas where the bone was ...

A replica of SUE, left, the most complete and best-preserved skeleton of a Tyrannosaurus rex, is displayed Tuesday, June 4, 2024, at the St. Louis Science Center.

Researchers looked at the teeth of theropods -- a group of bipedal, largely carnivorous dinosaurs that includes T. rex and Velociraptor-- to study the mysterious structures that looked like cracks ...

Secret structures hidden within the serrated teeth of Tyrannosaurus rex and other theropods helped the fearsome dinosaurs tear apart their prey without chipping their pearly whites, a new study finds ...

If so, sorry: Your image of a T. rex with a big, fierce grin with bare teeth may be wrong. The oversized dagger teeth of the T. rex and its relatives were probably completely covered by thin, ...

Tyrannosaurus rex was a massive meat-eating dinosaur that lived 66 million years ago; A T. rex tooth left lodged in the healed tail of a plant-eating hadrosaur dinosaur says it was a hunter ...

A new T. rex of the leech world has been named ... T.Rex of Leeches Has Enormous Teeth. By LiveScience. Published April 15, 2010 8:51am EDT | Updated January 13, 2015 1 ...

T. Rex Had Lips That Concealed Its Teeth, Study Says Paleontologists say popular, toothy depictions of the dinosaur may have missed the mark. Alex Chun - Staff Contributor. March 31, 2023.

With its mouth closed, all of the enormous teeth of T. rex would be invisible behind its lips. CREDIT: Mark P. Witton. Additionally, therapod lips were likely not muscular, as seen in mammals.