An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
A cow produces around 200,000 glasses of milk in her lifetime.
373
Only about 2% of the world population has green eyes.
36
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13