All the chemicals in the human body have a combined value of approximately £4.00. See more

When baby sharks are born, they swim away from their mothers right away and are on there own. In fact, their mothers might see them as prey. See more

Two-thirds of the world's executions occur in China. See more

The 'save' icon on Microsoft Word shows a floppy disk, with the shutter on backwards. See more

The right lung is slightly larger than the left. See more

Banging your head against a wall uses 150 calories an hour. See more

Those stars and colours you see when you rub your eyes are called phosphenes. See more

A crocodile's tongue is attached to the roof of its mouth and he cannot move it. See more

Male lions can sleep for up to 20 hours a day. See more