Sorry for my english, I use translator for some words.
I don’t mean the entire auditory system, as much as the pinna and lobe. Many animals have mobile auricles, to determine the origin of a sound and to amplify it, human no, we have this cartillaginous and fixed thing, flat on the side of the head, plus a flap of fat that hangs uselessly. It’s just a vestige?
In: Biology
The outer ear actually does quite a number of things.
One is that it boosts the pressure of soundwaves that have the frequency of human speech.
Another is that even though we can’t move it around like other animals can it does allow us to determine the direction that sound is coming from.
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