The megalodon shark was an apex predator, meaning it was at the top of the food chain. Apex predators have no natural predators of their own, so a fully grown megalodon had little to fear in the prehistoric oceans. It was the big boss of the ancient seas, and it hunted a wide array of prey items.
However, even apex predators end up on the wrong end of the lunch menu now and then. Modern great white sharks are apex predators, but they are sometimes hunted and killed by orcas, another apex predator. So, it isn’t unreasonable to think this could have happened to megalodon.
But orcas are larger than great white sharks, and they hunt in packs. What kind of animal could have taken on the massive, 60-foot megalodon shark?
Livyatan melvillei was one contender. It was a whale as big as an adult megalodon shark, with foot-long teeth. It, too, was an apex predator, but would it have taken on meg in the right situation?
It’s impossible to know for sure, and because shark skeletons are made of cartilage, not bone, we have no megalodon bones to reference for bite marks. Nevertheless, it is intriguing to imagine these two prehistoric hunters squaring off in the ancient ocean.