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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 ...

It often uses old structures (or ancient genes) for new jobs. The mammalian ear is a perfect example. Over the eons, the jawbones of our fish ancestors became three separate small bones that ...