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

When Krakatoa erupted in 1883, its force was so great it could be heard 4,800 kilometres away in Australia.

Every year lightning kills 1000 people.

Koalas sleep an average of 22 hours a day, two hours more than the sloth.

The Universe contains over 100 billion galaxies.

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

The largest desert in the world, the Sahara, is 3,500,000 square miles.

The world's smallest winged insect, the Tanzanian parasitic wasp, is smaller than the eye of a housefly.