The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The human body contains over a billion miles of DNA.
147
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A man's beard grows fastest when he anticipates sex.
239
The human brain is more active during sleep than during the day.
28
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
The average sperm cell swims at 8 inches per hour.
4
The human brain uses approximately as much energy as a 10 watt light bulb.
120