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 ...

Some people experience fluttering sounds in the ears that come and go, while others may hear a continuous sound. Causes include tinnitus, dysfunction of tissues in the ear, and high blood pressure.

Scientists have traced the evolutionary origin of humans' outer ears to the gills of ancient fish through a series of gene-editing experiments. When you purchase through links on our site ...