‘Obsolete’ muscle that wiggles ears actually activates while listening

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

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