The average person's skin weighs twice as much as their brain.
131
Early American humans hunted car-size armadillos and used their shells for houses.
12
A human being loses an average of 40 to 100 strands of hair a day.
133
The human sigh acts as a physiological reset button.
23
The average person will go on a date at least 100 times before they finally marry.
33
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
We share 70% of our DNA with a slug.
218