I don't know credits

Words are spell
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[–] 2 points 2 weeks ago

Many animals communicate using sound (including for stuff like coordinating a hunt) so I don't think it would a novel concept even for early humans. They would instinctively know how to do it from the beginning. Development of speech is more about increasing complexity of transferred information, which coupled with memory (and intellect) allows to retain skills and knowledge across generations.

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