A small fossil jaw rests in Argentina’s national natural science museum in Buenos Aires. The fossil, only six inches long, carries backward-curving teeth shaped for gripping prey. Paleontologist ...

Add Yahoo as a preferred source to see more of our stories on Google. Monument staff work on excavated dinosaur fossils in the Quarry Exhibit Hall Parking Lot. Workers at Dinosaur National Monument ...

A 125-million-year-old dinosaur just rewrote what we thought we knew about prehistoric life. Scientists in China have uncovered an exceptionally preserved juvenile iguanodontian with fossilized skin ...

A UChicago-led team unearthed ‘Spinosaurus mirabilis,’ a fish-eating giant and the first new species of its kind in a century, where nothing like it was supposed to exist ...

Long before horses thundered across the plains, a plant-eating giant with hooves of its own left footprints in the mud. Newly described fossils of Edmontosaurus annectens—a duck-billed dinosaur that ...

Exactly where and when dinosaurs first evolved are still open questions in paleontology. Exactly where and when dinosaurs first evolved are still open questions in paleontology; it’s hard to even say ...