In one day, adult lungs move about 10,000 litres of air.
11
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Early American humans hunted car-size armadillos and used their shells for houses.
12
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
If your DNA was stretched out it would reach to the moon 6,000 times.
256