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Humans Lost the Ability to Swivel Their Ears—But These Vestigial Muscles Still Twitch

Humans Lost the Ability to Swivel Their Ears—But These Vestigial Muscles Still Twitch

Tens of millions of years ago, our ancestors could swivel their ears to pick up sounds, much like cats and dogs do today. Humans lost that ability over time, and the muscles that once controlled ear movement are now mostly useless—except for a few people who can still wiggle their ears. But new research shows that these muscles still react …

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