An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Gorillas can catch human colds and other illnesses.
205
Babies crawl an average of 200m a day.
212
Early American humans hunted car-size armadillos and used their shells for houses.
12
You can't tickle yourself.
29
Mushrooms are more closely related to humans than they are to plants.
47
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
The average sperm cell swims at 8 inches per hour.
4