Early American humans hunted car-size armadillos and used their shells for houses.
12
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Only humans shed emotional tears.
331
Human hair and fingernails continue to grow after death.
7
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24