Sotheby’s is auctioning the only known juvenile specimen of a Ceratosaurus nasicornis dinosaur for an estimated $4-6 million. It is one of the finest and most complete examples of its genus. A swift ...

I’m not sure whether it was elementary school science classes or Fred Flintstone’s Brontosaurus burgers that made the giant herbivore one of the most recognizable dinosaurs to me as a kid. But for ...