Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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The average sperm cell swims at 8 inches per hour.
4
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Only humans shed emotional tears.
331
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99