A species of carnivorous dinosaur that once roamed Madagascar 70 million years ago was so tough on its teeth that they needed to be replaced frequently, according to a new study
Majungasaurus had to replace its mouth full of teeth about every two months, growing replacements in each socket anywhere from two to 13 times faster than other meat-eating dinosaurs, the researchers found. The study published Wednesday in the journal PLOS ONE.
Read More"That's our working hypothesis for why they had such elevated rates of replacement," D'Emic said. Earth was on the other side of the galaxy when dinosaurs reignedThe rate of tooth growth was so rapid that it lines up with the quick ability sharks have of replacing their teeth -- as well as the large herbivore dinosaurs, he said.
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