Early American humans hunted car-size armadillos and used their shells for houses.
12
There are about 255 babies born worldwide every minute.
46
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Mushrooms are more closely related to humans than they are to plants.
47
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515