Cows can sleep standing up, but they can only dream lying down.
745
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Lurch, a Watusi bull, had the largest horns in the world.
32
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165