CHICAGO--For the first time, scientists have determined the lifelong growth pattern for the Tyrannosaurus rex. T. rex reached its massive adult size due to an extraordinary growth spurt that ...

“We can compare them to big lizards like Komodo Dragons. They had sort of these slicing bites, hacking away flesh off prey,” Rowe explains. Falling victim to an Allosaurus attack would probably end in ...

A FedEx truck carrying the Wankel T. rex skeleton departed Bozeman, Montana, on Friday for the National Museum of Natural History in Washington, D.C. A bronze cast of the 65-million-year-old ...

And in the case of T. rex, that force was concentrated at the tips of giant, sharp, serrated teeth that enhanced the power of the jaws up to a whopping 431,342 pounds per square inch (psi).

Asteroid 2025 PM is around the size of three Tyrannosaurus Rex dinosaurs. The asteroid won't hit the Earth, according to NASA ...

T. rex still reigns as the king of dinosaurs, according to scientists who on Monday argued against a contentious hypothesis advanced this year that the mighty meat-eater Tyrannosaurus should be ...