Cows can sleep standing up, but they can only dream lying down.
745
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
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21