The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Indoor pollution is 10 times more toxic than outdoor pollution.
62
One barrel of petroleum holds 42 gallons.
20
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
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
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Sound travels fifteen times faster through steel than through air.
134