Giant 20-foot-long raptor dinosaurs once roamed Australia, according to a new study that could rewrite the evolutionary history and hierarchy of predators on the continent. The research, published in ...

Finding of quill knobs on fossilized velociraptor bone demonstrates that even large dinosaurs were feathered and may have descended from animals capable of flight. Scientists have known for years that ...

Utahraptor is often described as the largest and most fearsome of all raptor dinosaurs, but the evidence behind that claim remains debated. Fossil discoveries revealed an animal far bigger than its ...