Children laugh about 400 times a day, while adults laugh on average only 15 times a day.
973
Only 2% of the Earth's population are natural redheads.
13
Every human spent about half an hour as a single cell.
144
All babies are color blind when they are born.
114
The world's shortest man measures only 21.5 inches.
73
One in 500 humans has one blue eye and one brown eye.
145
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15