Can Fish Hear?

Have you ever been fishing and tiptoed to the edge  of the brook in order not to scare the fish away? If a fish hears you, the chances are the might decide it is safer elsewhere because fish do have ears and can hear.

But the ears of a fish are located internally, not externally as are the ears of so many other familiar creatures. Many people imagine that fish somehow get along without performing some of the functions we know are necessary to life.

This may be because fish are cold-blooded. And it may also because we like to catch fish and prefer to think they do not know what is happening to them.

But fish have a nervous system like other animals. When we make them uncomfortable, they feel it, and when we hurt them, they suffer pain.

Fish have a very keen sense of touch, and they taste, as well as feel, with their skin. They also have two small organs of smell which are located in nostrils on the head.

And just because a fish cool-blooded does not mean it can go with out “fuel” to keep the body going. This “fuel”, of course, is food. It is burned in all living tissue of the fish and provides the power of life growth, and motion.

The blood stream carries not only this food to every organ of the body, but also oxygen to keep the “fires” going. So the fish has a heart to pump this blood, just a we have.

Fish, of course, live in so many different kinds of environment that they differ from each other in many ways. For example, lungfish actually have booth gills and “lungs” for breathing in air!

Some fish that live in cavers are blind, and so they have developed feelers on their heads. Some live in salt water and some in fresh. And some fish live only on the bottom of the ocean.

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