Communication
Dolphins use a similar echolocation mechanism, both for finding their way and for communication. In general, communication is the other main use for sound, since it is generally easier for animals to produce sound than light. Speech production and recognition in humans is a spectacularly impressive process, which is crucial to our success as a species. The fact that sound can travel around corners is an added bonus – the person you are talking with does not need to be in a direct line of sight.
Dolphins use a similar echolocation mechanism, both for finding their way and for communication. In general, communication is the other main use for sound, since it is generally easier for animals to produce sound than light. Speech production and recognition in humans is a spectacularly impressive process, which is crucial to our success as a species. The fact that sound can travel around corners is an added bonus – the person you are talking with does not need to be in a direct line of sight.
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