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 ...

The world's largest-known dinosaur mating display area may have been found hiding in plain site at Colorado's Dinosaur Ridge site. Once a tidal flat, this region would have been periodically flooded ...

A team of paleontologists and researchers affiliated with several institutions in the U.S. has discovered what may be the largest known dinosaur mating dance arena ever found. For their study, ...

(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 ...

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 ...