The average temperature at 40,000 feet above sea level is -60 F.
56
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Out of all the senses, smell is most closely linked to memory.
146
Most dust particles in your house come from dead skin.
48
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Each day, up to 150 species of life become extinct.
-23
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65