Everyone knows about the mass extinction that ended the Age of Dinosaurs. About 66 million years ago, a seven-mile-wide asteroid slammed into our planet and began a mass extinction that wiped out all ...

During the Late Triassic, the supercontinent of Pangea split into two ... avoiding the jaws of much larger reptiles like 17-foot-long Heptasuchus, crocodile-like phytosaurs, and four-foot-long ...