Growing quickly allowed the earliest dinosaurs and other ancient reptiles to thrive in the wake of the mass extinction

It may be hard to imagine, but dinosaurs did not once dominate their world. When they first arose, they were just small, two-legged carnivores, dwarfed by a wide variety of other reptiles. How did they come to power? My colleagues and I recently studied the fossilized bones of the earliest known dinosaurs and their non-dinosaur … Read more