An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
94
The average sperm cell swims at 8 inches per hour.
4
Your thumb is about the same size as your nose.
124
Babies crawl an average of 200m a day.
212
Obsessive nose picking is called Rhinotillexomania.
101
Early American humans hunted car-size armadillos and used their shells for houses.
12
In one day, adult lungs move about 10,000 litres of air.
11