Early American humans hunted car-size armadillos and used their shells for houses.
12
You forget 90% of your dreams.
256
Your fingernails grow faster in summer.
744
The human eye blinks an average of 4,200,000 times a year.
233
It takes approximately 12 hours for food to entirely digest.
93
Your thumb is about the same size as your nose.
124
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
If the human eye was a digital camera, it would have 576 megapixels.
25