Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Mushrooms are more closely related to humans than they are to plants.
47
Obsessive nose picking is called Rhinotillexomania.
101
A man's beard grows fastest when he anticipates sex.
239
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
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
We share 70% of our DNA with a slug.
218