A healthy person has 6,000 million, million, million haemoglobin molecules.

The largest meteorite craters in the world are in Sudbury, Ontario, canada and in Vredefort, South Africa.

Micro-organisms have been brought back to life after being frozen in perma-frost for three million years.

A salmon-rich, low cholesterol diet means that Inuits rarely suffer from heart disease.

Englishman Roger Bacon invented the magnifying glass in 1250.

Every second around 100 lightning bolts strike the Earth.

The African Elephant gestates for 22 months.

There are more living organisms on the skin of each human than there are humans on the surface of the earth.