Research at the Natural History Museum suggests variations in jaw muscles and biting actions.
Researchers said they hoped their findings would shed further light on how dinosaurs evolved to occupy certain ecological nichesWhile analysing skulls of the first known herbivorous dinosaurs, scientists found they had variations in eating styles despite similar diets.
He added: "This showed that these dinosaurs, although looking somewhat similar, had evolved very different ways to tackle a diet of plants."Published in the journal Current Biology, researchers said their findings could help shed further light on how dinosaurs evolved to occupy certain ecological niches, also highlighting how unpredictable evolution could be.
The team found that Heterodontosaurus had large jaw muscles relative to its skull size, thus producing a high bite force ideal for consuming tough vegetation.
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