Our auricular muscles are vestigial, remaining part of our bodies while losing their function – moving the pinna, the outer ear – as evolution took its course. “The exact reason these became ...

Our hair cells are in our internal ear, the part that does the actual hearing that sits behind a thin membrane or eardrum. The outside part, called the pinna, works like a satellite dish to ...

The ear can detect a time difference as slight as 30 microseconds ... Time delays of reflections from the ridges of the pinna. The first chart (left) shows the delays (in microseconds) caused by ...

Unlike mammals, birds do not have external ear flaps (pinnae). Instead, they have ear openings hidden beneath feathers, designed to capture sound efficiently while minimizing wind interference.

Ear (aural) hematomas occur when blood vessels in the pinna rupture secondary to trauma or excessive head shaking. Blood fills the space between the skin and the cartilage, causing pain and ...