A 3D-printed model of the Parasaurolophus skulls at a 1:3 scale to the original fossil. The white model is the nasal passages inside the skull. Journalists may use this image only with appropriate ...

Terry Gates had spent years, Hamlet-like, pondering over skulls when, one day, he had an epiphany. Of the dinosaurs he was studying—he’s a paleontologist at North Carolina State University ...

Triceratops’ enormous head might have been all it took to send other dinosaurs running—some recovered skulls measure up to 10 feet long. Its head was ornamented with three horns, a short one ...

The skulls of three hadrosaur dinosaurs, Lambeosaurus lambei (top left), Gryposaurus notabilis (top right), Parasaurolophus walkeri (lower). Disclaimer: AAAS and EurekAlert! are not responsible ...