The magnetic North Pole shifts by about 7 meters a day. See more

A giraffe can clean its ears with its 21-inch tongue. See more

A tuna called the 'Blue Fin' can be sold for over $20,000 around the world. See more

The first bar code was used on Wrigleys gum. See more

Your nose smells best when you are about 10 years old. See more

The deepest hole ever made in the world (in Texas) is as deep as 20 empire state buildings but only 3 inches wide. See more

A rat can last longer without water than a camel. See more

Astronauts grow taller in space. See more

A rat can last longer without water than a camel can. See more

365 different languages are spoken in Indonesia. See more

Your skin weighs about 3.2 kg. See more

Soccer is the most attended or watched sport in the world. See more

More than 20% of the votes in the 2001 elections in Argentina were invalid. See more

Lightning bolts can sometimes be hotter than the sun (about 50,000 ºF, 27,760 ºC). See more

The screwdriver was invented before the screw. See more

Hot water weighs less than cold water for a given volume. See more