The megalodon shark not only could eat whales, but did as the main part of its diet. This shark was a huge predator with an incredibly powerful bite.The megalodon shark not only could eat whales, but did as a main part of its diet. It could easily attack the largest marine mammals of its day, such as whales.
Could it kill a modern blue whale? Probably. Blue whales grow close to 100 feet long and weigh over 170 tons, dwarfing even the mighty megalodon. But, like the great white shark, megalodon was most likely an ambush predator, lurking in the depths and coming up to attack. It could attack whales much larger than itself by first disabling it with a bite to the fin or tail.
In addition to whales, megalodon also preyed on prehistoric dolphins, seals, sea turtles and large fish. Really, this shark ate whatever it wanted, and as long as it was a significant source of calories, it was probably on the menu.
However, there was one prehistoric whale that gave megalodon a run for its money. Leviathan Melvillei was a huge whale about the same size as meg, but with teeth measuring a foot long. This is quite a bit larger than megalodon teeth, the largest of which is only about seven inches.
Leviathan Melvillei and the megalodon shark occupied the same area during the same period, and very likely competed for food sources. In fact, it’s possible they even preyed on each other from time to time. It’s interesting to ponder what might have happened when these two monsters met.