Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
One cubic foot of gold weighs more than 1,200 pounds!
78
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18