The average sperm cell swims at 8 inches per hour.
4
By weight, Bone is five times stronger than steel.
417
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
In one day, adult lungs move about 10,000 litres of air.
11
The human body contains over a billion miles of DNA.
147
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Mushrooms are more closely related to humans than they are to plants.
47