Your body is creating and killing about 2.4 million red blood cells per second.
17
A cow produces around 200,000 glasses of milk in her lifetime.
373
Cows can sleep standing up, but they can only dream lying down.
745
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
You forget 90% of your dreams.
256
Only about 2% of the world population has green eyes.
36