Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more . CNN  —  Tyrannosaurus rex ancestors and their plant-eating dinosaur prey would have congregated to drink water from a lagoon in what is now Scotland, new research suggests. Despite the fact that the carnivorous megalosaurs would have hunted the long-necked sauropods 167 million years ago, newly identified footprints show that both types of dinosaur