Fish have a great sense of smell.They use their sense of smell to find food.Most fish can see.Fish that live at the bottom of the sea in total darkness cannot see.Some do not have eyes.
Fish can also feel things in the water around them.They can feel things before they can see them.They can tell if a big,dangerous fish that might eat them is coming near.
Minnows can tell when another minnow is being attacked.The skin of the minnow in danger gives off a chemical.The chemical warns other minnows to escape.Skin chemicals also help fish swim in groups called schools.By sensing skin chemicals,the fish in a school can all turn,stop,or swim away at one time.
What Fish Eat