The classic image of the Tyrannosaurus rex baring its massive, sharp teeth might be inaccurate, according to new research. A study published in the journal Science suggests that the teeth of T. rex and other large theropods were covered by scaly lips. Even in a wide-open bite, you would only see the tips of the teeth. This recent research contradicts depictions that show big teeth jutting out of dinosaur jaws even when closed. The scientists found that some monitor lizards have bigger teeth than T. rex compared to their skull size and can still fit them under scaly lips. The study provides evidence for lipped tyrannosaurs, which would have lips similar to those of a Komodo dragon.

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