Babies crawl an average of 200m a day.
212
Early American humans hunted car-size armadillos and used their shells for houses.
12
The human body contains over a billion miles of DNA.
147
If the human eye was a digital camera, it would have 576 megapixels.
25
Your thumb is about the same size as your nose.
124
On average, there's 100 billion neurons in the human brain.
83
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197