Cows can sleep standing up, but they can only dream lying down.
745
Only about 2% of the world population has green eyes.
36
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Lurch, a Watusi bull, had the largest horns in the world.
32
The largest breed of rabbit is the Flemish Giant.
65
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4