If you can wiggle your ears, you can use muscles that helped our distant ancestors listen closely. These auricular muscles ...

Do your ears hang low, do they wiggle to and fro? In the latter case, that’s thanks to a so-called “neural fossil”.

Interaural time difference as a function of the direction of the source of clicks ... Time delays of reflections from the ridges of the pinna. The first chart (left) shows the delays (in microseconds) ...