A small dinosaur skull found in Montana 40 years ago was thought to be a young T. rex. Turns out it was a smaller, faster ...

The goal was to test three ideas: that bigger predators reduced skull stress through scaling, that tyrannosauroids had unusually high stress from massive bite forces, and that smaller species would ...

The Nanotyrannus genus has been debated for decades, with some paleontologists arguing that specimens thus classified are ...