Astronauts cannot belch - there is no gravity to separate liquid from gas in their stomachs.

Each rubber molecule is made of 65,000 individual atoms.

The deepest part of any ocean in the world is the Mariana trench in the Pacific with a depth of 35,797 feet.

Inbreeding causes 3 out of every 10 Dalmation dogs to suffer from hearing disability.

Wounds infested with maggots heal quickly and without spread of gangrene or other infection.

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

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

At 15 inches the eyes of giant squids are the largest on the planet.