A dog's sense of smell is 1,000 times more sensitive than a humans.

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

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

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

October 12th, 1999 was declared 'The Day of Six Billion' based on United Nations projections.

The largest ever hailstone weighed over 1kg and fell in Bangladesh in 1986.

When a flea jumps, the rate of acceleration is 20 times that of the space shuttle during launch.

The short-nosed Bandicoot has a gestation period of only 12 days.