
Ancient tracks reveal that many pterosaurs were just as comfortable walking on the ground as they were flying through the skies during the age of dinosaurs, a new study finds.
Pterosaurs, informally called "pterodactyls," were flying reptiles that ruled the skies when dinosaurs dominated the land. However, new research has discovered that pterosaurs diversified during the middle of the Jurassic period (201 million to 145 million years ago) and evolved to walk more effectively on four limbs, using their hands and feet.