Not only was Livyatan an apex predator like C. megalodon, it probably fed upon the same prey animals which were medium sized baleen whales. Smaller juvenile Livyatan may have preferred proportionately smaller prey items like the smaller cetaceans or even large fish. With teeth that were thirty-six centimetres long, Livyatan had the dentition to take down large prey items. In fact not only were the teeth of Livyatan considerably larger than C. megalodon teeth, they are considered to be the largest known teeth for the purpose of eating. Granted some animals like elephant have modified teeth that form tusks which are even bigger, but they are useless for processing food in the mouth so in this case they do not count as the largest. Livyatan also had teeth in both the upper and lower jaws for grasping prey (the modern sperm whale, the closest living analogy to Livyatan, only has teeth on the lower jaw).