00:00these teeth are probably one of the first things that come to mind when you imagine a t-rex but
00:07now experts say that unlike the film jurassic park where the tyrannosaurus's toothy grin is
00:12ever-present the creature likely had equally big lips to cover those chompers up the paleontologists
00:17say t-rex wasn't the only creature with dino lips either likely all theropods had them with
00:22the researchers writing in their report that there really has never been a dedicated study
00:26investigating this before that is until now they found that teeth wear differently in lipless
00:30animals like crocodiles when compared to carnivorous dinosaurs with one of the studies authors adding
00:35as any dentist will tell you saliva is important for maintaining the health of your teeth they also
00:40found holes in the jaws of dinosaurs where they expect nerves to run through and they were more
00:44lizard-like in the t-rex than even modern-day crocodiles as well the researchers say that t-rex
00:48lips were likely most akin to those of the tuatara a rare reptile that is only found on the island
00:53nation of new zealand going on to say that while the teeth of a t-rex look absolutely gigantic to us
00:58relative to their own size their teeth are no larger than those of a lizard
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