Cows can sleep standing up, but they can only dream lying down.
745
Your thumb is about the same size as your nose.
124
Your body is creating and killing about 2.4 million red blood cells per second.
17
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 University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31