Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The average person's skin weighs twice as much as their brain.
131
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
There's 100 trillion good bacteria living in your body.
17