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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Your heart will pump about 212 million liters in its lifetime.
26
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Mushrooms are more closely related to humans than they are to plants.
47
A person can live without food for about a month, but only about a week without water.
156
Only humans shed emotional tears.
331