Mushrooms are more closely related to humans than they are to plants.
47
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The human brain doesn't stop developing until about 25 years old.
102
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Early American humans hunted car-size armadillos and used their shells for houses.
12
It takes about 20 seconds for a red blood cell to circle the whole body.
102
One human hair can support 3 ounces.
191
Poor eyesight (myopia) is associated with higher IQ.
232