If the human eye was a digital camera, it would have 576 megapixels.
25
Early American humans hunted car-size armadillos and used their shells for houses.
12
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
The average sperm cell swims at 8 inches per hour.
4
There are about 255 babies born worldwide every minute.
46
Mushrooms are more closely related to humans than they are to plants.
47
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130