Your body produces one billion red blood cells every day. One cubic inch of bone can withstand a two ton force. The heaviest body organ is the skin. The average mass is 3.2 kilograms or seven pounds. No wonder it droops with age.
All snowflakes have six points, yet no two snowflakes are alike.
It takes 625 grapes to make one bottle of wine. There are more chickens in the world than any other bird. A woodpecker can peck up to 500 times per minute or 8 times per second. Now that's using your head. The human heart produces enough energy in one day to lift 360 metric tonnes 1 meter.