Only about 2% of the world population has green eyes.
36
A cow produces around 200,000 glasses of milk in her lifetime.
373
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Your thumb is about the same size as your nose.
124