Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
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
Liquid TIDE laundry detergent glows under a blacklight.
96
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Sound travels about 4 times faster in water than in air.
408
One barrel of petroleum holds 42 gallons.
20