“The exact reason these became vestigial is difficult to tell, as our ancestors lost this ability about 25 million years ago, ...

A muscle that we thought served no purpose beyond enabling some people to wiggle their ears is actually active when we are ...

Summary: Humans have vestigial ear muscles that once helped our ancestors focus on sounds. New research shows these muscles still activate when we strain to hear in noisy environments. Scientists used ...

Learn more about the auricular muscles, which activate when we wiggle our ears, and apparently, when we listen to several sounds at once.