#21 – Sleep
Sharks sleep differently than us. Most of these animals don’t settle down on some rock on the ocean’s bottom so they could get some rest. In fact, sharks can sleep while they are swimming. They can do this “sleep swimming” by making some parts of their brain less active.
However, there are some types of sharks that can’t sleep and swim at the same time, such as the leopard shark. These sharks have to settle down and get some rest.