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For decades the Tyrannosaurs rex has been the mascot of all dinosaurs, and for good reason. They’re the most famous of the late Cretaceous therapod dinosaurs, apex predators of their time. Their ...

The characteristic small arms of the T. rex might have been used to help them in the throes of passion. Scientists in Argentina have discovered a new species of dinosaur predator that has similar ...

Over the two decades paleontologist Kevin Padian taught a freshman seminar called The Age of Dinosaurs, one question asked frequently by undergraduates stuck with him: Why are the arms of ...