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To vocalize, animals create sound waves in their pipe-like vocal tracts. Shorter pipes produce higher-frequency sounds, so small animals like the cuddly koala should have high voices. [Koala sound.] Or not.
Read More »To vocalize, animals create sound waves in their pipe-like vocal tracts. Shorter pipes produce higher-frequency sounds, so small animals like the cuddly koala should have high voices. [Koala sound.] Or not.
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