Mushrooms are more closely related to humans than they are to plants.
47
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
It takes about 20 seconds for a red blood cell to circle the whole body.
102
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
In one day, adult lungs move about 10,000 litres of air.
11
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Human hair and fingernails continue to grow after death.
7