The are lots of types of fish that live in the sea.
Different types of fish live in different parts of the ocean. Some
live close to coral reefs. Some live near the surface. Some even live
in the deep waters close to the bottom of the ocean. Fish eat a variety
of things, from plants, plankton (small living organisms), to even other
fish.
Sharks are one of the better known predators in the sea. Many sharks
have sharp teeth that are used to catch their food. The most dangerous
shark is the great white shark, which can grow to over 20 feet long.