Only about 2% of the world population has green eyes.
36
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Cows can sleep standing up, but they can only dream lying down.
745
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
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14