Add Yahoo as a preferred source to see more of our stories on Google. Examples of hadrosaur vertebrae with healing fractures suggest an external force pressed on top of them. - Filippo ...

Researchers have discovered evidence of one of the largest dinosaur mating "dance arenas" in present-day Colorado. Previous studies have identified a couple of "dinosaur lek" areas -- where male ...

Whatever happened to the duck-billed dinosaur, it was a real pain in the butt. Many of the spines sitting atop the animal’s tail vertebrae had been fractured. The dinosaur, known as Olorotitan to ...

(CNN) — Paleontologists have long wrestled with how to differentiate between male and female dinosaurs based on their fossils. But new research may bring scientists closer to identifying the sex of ...