Some cool stuff on wiki about great whites, they don’t begin to breed until their twenties and thirties and when they get THAT big they may depend largely upon whale carcasses (I didn’t think there were that many dead whales).
Sharks can go an awfully long time between large feedings. Depends on the species, of course, and Great Whites and Makos maintain a higher body temp than the surrounding water, so need more than most. Still a real long time, in human terms. I think the latest data indicates that 66 pounds of blubber is good for about 6 weeks, for a Great White.
