the idea sounds like science fiction, but the question has a real scientific edge: could dinosaur-like creatures exist on other planets. researchers point out that evolution often repeats successful ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the details of their end have remained a matter of debate since the impact crater ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...