If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
During an average lifetime, a man will spend 3,350 hours removing 8.4 meters of stubble.
52
Babies cry but they don't produce tears until one to three months after birth.
238
Every human spent about half an hour as a single cell.
144
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119