Early baby dinosaur had full-grown bite

A rare baby dinosaur skull – only the size of a rat’s head – confirms Heterodontosaurus as one of the most unusual of all dinosaurs. The 45-millimetre skull has features characteristic of a juvenile – large “puppy dog” eye sockets, and a snub nose – but it also sports the meat-tearing canine teeth normally associated with adults. Image: Society of Vertebrate Paleontology

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