Your thumb is about the same size as your nose.
124
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The strangers in your dreams are actually people that you've seen in real life.
50
A cow produces around 200,000 glasses of milk in her lifetime.
373
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Lurch, a Watusi bull, had the largest horns in the world.
32
Your body is creating and killing about 2.4 million red blood cells per second.
17
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3