There are 60,000 miles of blood vessels in the human body.

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

One in every 2000 babies is born with a tooth.

The dinosaurs became extinct before the Rockies or the Alps were formed.

Every year lightning kills 1000 people.

A quarter of the world's plants are threatened with extinction by the year 2010.

The tallest tree ever was an Australian eucalyptus - In 1872 it was measured at 435 feet tall.

In October 1999 an Iceberg the size of London broke free from the Antarctic ice shelf .