there are about 12
ears
Instinct, they have special muscles that move the ears.
You can't move the ears so there is no muscles that can move the ears.
There are 3 muscles in the human ear. Interestingly cats, although small has 32 muscles in their ears.
There are 16 pairs of muscles in the horses ears that allow mobility.
There are small muscles and sinews that connects to ears and tail which allows them to move when the pig wants to.
The one between the ears.
Cotton Buds in ears so that their ears don't burst. Steroids for there muscles, and cheese because they can.
Cats have 32 muscles in each of their ears.
Dogs have 30 sets of muscles in there ears humans have six and cats have 32
In those animals with mobile ears, they are used to point the external ear in the direction of the sound. In animals with fixed ears (humans, some apes, some bats) who sound locate by phase delay, those muscles are inhibited from moving to prevent confusion in locating sound. (Yes, some people can wiggle their ears. Call it a throw-back.)