The exact moment when Earth’s most catastrophic mass extinction ended the dinosaurs’ reign 65 million years ago has remained ...

This dinosaur’s skull was light as air but its mouth was packed with power—and a unique ability to quickly grow teeth. Here’s how Nigersaurus was built for nonstop grazing. The cast of the skull of ...

A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like. Paul Sereno and his colleagues spent years painstakingly preparing this ...

When did these blockhead dinosaurs get their domes? A new fossil is “the specimen we have all been waiting for.” In this artist's reconstruction, two pachycephalosaurs from the new species Zavacephale ...