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

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

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

A day on the planet Mercury is twice as long as its year. See more

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

The catfish has over 27,000 taste buds, that makes the catfish rank #1 for animal having the most taste buds. See more

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

A rat can fall from a five story building without injury. See more