Plant-Eating Dinosaurs Carried Spare Teeth | Video

Some of the largest herbivorous dinosaurs replaced their teeth at a rate of one tooth every 1 to 2 months due to wear from crunching up plants, research finds. This CT scan of the upper jaw of a Diplodocus renders bone transparent and teeth opaque.
credit : D'Emic MD, Whitlock JA, Smith KM, Fisher DC, Wilson JA
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