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
You can't tickle yourself.
29
It takes approximately 12 hours for food to entirely digest.
93
The human brain is more active during sleep than during the day.
28
A human being loses an average of 40 to 100 strands of hair a day.
133
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
On average, there's 100 billion neurons in the human brain.
83