Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Only humans shed emotional tears.
331
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
A man's beard grows fastest when he anticipates sex.
239
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Enamel is hardest substance in the human body.
61
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
A human being loses an average of 40 to 100 strands of hair a day.
133