Most fish eat meat.Some eat tiny plants.Sharks and other big fish eat smaller fish.Some sharks eat seals.
Some fish have large,sharp teeth.Sharks and other big fish grab their prey and bite it.Other fish suck prey into their mouths and use smaller teeth to grind them up.
Some fish do not have teeth.Their mouths sift tiny plants and animals from the water.In the deep ocean where sunlight never reaches,the bodies of some fishes have chemicals that make a glowing light to attract prey.
How Fish Reproduce
