Cats and dogs can hear ultrasound.
350
Flies are deaf.
379
Only 10-20% of the population can wiggle their ears and raise one eyebrow.
22
You can alleviate a tickly throat by scratching your ear.
9
Pain occurs when sounds are above 130 db.
124
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Wearing headphones for an hour increases the bacteria in your ear 700 times.
233