The first pterosaurs had a sail-like tensioning system for flying with potentially cumbersome tail vanes, which they could have used for displays, a new study finds.

Leslie Katz covers the intersection of culture, science and tech. An artist's reconstruction of the newly named dinosaur whose remains were destroyed in a 1944 WWII ... [+] air raid ...

exploring the evolutionary features that set them apart from other dinosaurs. In This Article Spinosaurus, distinguished by ...

One member of this group was a large, sail-backed animal called dimetrodon, which looks like it could be a dinosaur but isn’t. Then 252 million years ago came the Permian-Triassic extinction event.