Mushrooms are more closely related to humans than they are to plants.
47
You forget 90% of your dreams.
256
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Every human spent about half an hour as a single cell.
144
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A person can live without food for about a month, but only about a week without water.
156
The average person's skin weighs twice as much as their brain.
131