Congratulations! You win! The lack of nutrition caused the shark to evolve into a smaller version, hence, the reduced size.

Sharks belong to a group of creatures known as cartilaginous fishes, because most of their skeleton is made from cartilage rather than bone. The only part of their skeleton not made from this soft, flexible tissue is their teeth.

The Great White shark has around 300 teeth and yet does not chew its food! Just like its ancestor, it is currently the largest predatory fish in the world and it feeds on a large spectrum of fish, seals or even dolphins.