Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Only humans shed emotional tears.
331
The average sperm cell swims at 8 inches per hour.
4
The world's shortest man measures only 21.5 inches.
73
On average a woman has 4 sexual partners in her lifetime.
-143
A human being loses an average of 40 to 100 strands of hair a day.
133
You can't tickle yourself.
29