Most dust particles in your house come from dead skin.
48
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
For every gallon of sea water, you get more than a quarter pound of salt.
45
Out of all the senses, smell is most closely linked to memory.
146
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51