Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Cows can sleep standing up, but they can only dream lying down.
745
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Lurch, a Watusi bull, had the largest horns in the world.
32
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
Your thumb is about the same size as your nose.
124