Many animals use some kind of language. They use signals which have meanings. For example, when a bee has found some food, it goes back to its home. It is impossible for a bee to tell the other bees where the food is by speaking to them, but it can do a little dancing. This tells the bees where the food is and how far away it is. Some animals show how they feel by making sounds. It is not difficult to tell if a dog is angry because it barks. Birds make several different sounds and each has its own meaning. Sometimes we humans make sounds in the same way. We make sounds like. "Oh!" or "Ouch!" to show how we feel about something or when we drop something on our toes!
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