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…
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…