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

On the day that Alexander Graham Bell was buried the entire US telephone system was shut down for 1 minute in tribute.

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

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

The largest dinosaur ever discovered was Seismosaurus who was over 100 feet long and weighed up to 80 tonnes.

Every year lightning kills 1000 people.

The longest glacier in Antarctica, the Almbert glacier, is 250 miles long and 40 miles wide.

Alfred Nobel invented dynamite in 1866.