The lack of large numbers of fossils makes it hard to study sexual dimorphism in dinosaurs. But a new statistical approach offers insight into this question and others across science.

A recent study provides additional evidence that the dinosaurs died in June.

A new study suggests that, like modern birds, some dinosaurs brightly colored skin or scales and used the color to find a mate.

To get airborne, the giant pterosaur Quetzalcoatlus probably jumped at least 8 feet into the air before lifting off by sweeping its wings.

A new 130-million-year-old fossil "shakes up the evolutionary tree" of ichthyosaurs, which were ancient animals that look eerily like living swordfish.

We examined pterosaur jaw fragments from the Moroccan desert to understand more about how these creatures evolved.

An asteroid that struck Earth 66 million years ago killed nearly all dinosaurs, plants, and animals. So how did some creatures survive the mass extinction?

"We were able to show that the first tusks belonged to animals that came before modern mammals, called dicynodonts," researchers report.