A mechanism that activates specific muscles in our ears is a leftover from our evolutionary past, back when our ancestors depended more on their hearing for survival.
A muscle that we thought served no purpose beyond enabling some people to wiggle their ears is actually active when we are ...
To test whether humans still use auricular muscles — which once helped move our primate ancestors’ ears to funnel sound — scientists attached electrodes to the sides of people’s heads, and asked them ...
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