Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
Cats and dogs can hear ultrasound.
Your ears secrete more earwax when you are afraid than when you aren't.
Wearing headphones for an hour increases the bacteria in your ear 700 times.
Pain occurs when sounds are above 130 db.
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.