The extinct shark Otodus megalodon was a transoceanic super-predator: Inferences from 3D modelling

<p>Although shark teeth are abundant in the fossil record, their bodies are rarely preserved. Thus, our understanding of the anatomy of the extinct <em>Otodus megalodon </em>remains rudimentary. We used an exceptionally preserved fossil to create the first 3D model of the body of this giant shark and used it to infer its movement and feeding ecology. We estimate that an adult <em>O. megalodon</em> could cruise at faster absolute speeds than any shark species today, and fully consume prey the size of modern apex predators (e.g., the killer whale). A dietary preference for large prey potentially enabled <em>O. megalodon</em> to minimize competition and provided a constant source of energy to fuel prolonged migrations without further feeding. When taken together, our results suggest that <em>O. megalodon</em> played a singular ecological role as a transoceanic super-predator. As such, its extinction likely had large impacts on global nutrient transfer and trophic food webs.</p>