A Bat-Winged Dinosaur
Dinosaurs experimented with different kinds of flight
Dinosaurs evolved feathers, which they then used to build wings and develop flight, and that lineage survives today as birds. But this unique new fossil suggests that a closely related line of dinosaurs experimented with a completely different way to build a wing - one more similar to pterosaurs and bats.
Dr. Sullivan, who is an associate professor at the Institute for Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences in Beijing, says the fossil is not complete enough to understand how well it might have flown, but he suspects it wasn't a great flyer, which might be one reason why the lineage didn't survive.