Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Iron weighs more after it rusts.
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
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
The smell of freshly cut grass is actually a plant distress call.
31
A 'jiffy' is an actual unit of time for 1/100th of a second!
66