The tiny arms of Tyrannosaurus rex have puzzled scientists for decades. A new study now suggests a fairly simple explanation: ...
For decades, the disproportionately small forelimbs of Tyrannosaurus rex have been one of paleontology’s ...
The newly described mosasaur Tylosaurus rex spanned up to 43 feet (13 meters) long and may have been one of the fiercest ...
Five different groups of predatory dinosaurs independently evolved disproportionately small arms, and it seems they did so ...
Why does such a big and powerful dinosaur like the T. rex have such tiny forearms, in a new study scientists believe they ...
Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...
Billions of Tyrannosaurus rex roamed North America during their fascinating reign as top predators, according to a team of researchers that went about the daunting task of making the calculation.
A group of researchers has estimated how long it took Tyrannosaurus rex to reach its full size — and the time period is significantly longer than scientists previously believed. The dinosaur is ...