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A deer-sized T. rex ancestor shows how fast tyrannosaurs became giants
The newly discovered fossil’s name, Moros intrepidus, means ‘the harbinger of doom’
A new dinosaur shows that even Tyrannosaurus rex had humble beginnings. ...
Original Article: https://www.sciencenews.org/article/t-rex-ancestor-shows-how-fast-tyrannosaurs-became-giants