It takes approximately 12 hours for food to entirely digest.
93
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
The world's shortest man measures only 21.5 inches.
73
Babies crawl an average of 200m a day.
212
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
Every human spent about half an hour as a single cell.
144
Early American humans hunted car-size armadillos and used their shells for houses.
12