Hypacrosaurus

Crocodiles: The antique Cousins of the Dinosaurs

Feather fossils expose dinosaur's color

The front teeth of many dinosaurs like Maiasaura are very interesting. There is a heavy enamel layer on the outside of the upper teeth, but that very same layer is on the inside of the lower teeth. Therefore as the teeth come together, a self-sharpening effect takes place. The teeth become like chisels.

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