Scientists may have finally solved the riddle of Tyrannosaurus rex’s small arms, which have always stood out as the oddest feature in the mightiest of dinosaurs, prompting jokes and a century-plus ...

For more than a century, Tyrannosaurus rex has carried one of paleontology’s most stubborn visual jokes: a giant body, a massive skull, and arms so short they seem almost absurd. Kevin Padian, a ...

Imagine a predator over 12 feet tall and weighing several tons, with jaws strong enough to crush bone, but arms about the same length as those of the average adult human. For more than a century, this ...