Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
4.5 pounds of sunlight strike the Earth each day.
27
The only letter not appearing on the Periodic Table is the letter "J".
180
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One third of the electricity produced on earth is used to power electric light bulbs!
75
Billions of neutrinos pass unnoticed through your body every second.
6