Add Yahoo as a preferred source to see more of our stories on Google. Around 100 million years ago, male dinosaurs entered a "mating arena" in Colorado and danced their hearts out to attract females, ...

Scientists have discovered that a fossil site in Colorado was once the equivalent of a popular nightclub back in the long-ago Cretaceous era. In those times, male dinosaurs, some similar to the ...

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 ...

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 ...

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 one group ...