Early American humans hunted car-size armadillos and used their shells for houses.
12
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Our Right Lungs takes more air than our left lung.
194
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89