A teaspoon of neutron star material weighs about 110 million tons. See more

A boeing 747's wingspan is longer than the Wright brothers' first flight (120 feet/36 meters). See more

A flea can jump 350 times its own body length. See more

Bats always turn left when exiting a cave. See more

Elephants are the only animals that can't jump. See more

It is possible to lead a cow upstairs but not downstairs. See more

You can't kill yourself by holding your breath. See more

111,111,111 x 111,111,111 = 12,345,678,987,654,321. See more

28% of Africa is wilderness. See more

Everyone is colourblind at birth. See more

If you take a pencil, you can draw a 50 kilometer (31 mile) long line. See more

Eels have two hearts. See more

Grapes explode when you put them in the microwave. You have been warned! See more

A 'jiffy' is an actual unit of time for 1/100th of a second. See more

To escape the grip of a crocodile's jaws, push your thumbs into its eyeballs, it will let you go instantly. See more

Rubber bands last longer when refrigerated. See more