Heroin used to be a cough medicine for children. A German company (Bayer) registered heroin as a trademark. See more

The only "real" food that U.S. Astronauts are allowed to take into space is pecan nuts. See more

The average life expectancy of a toilet is 50 years. See more

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

You use over 70 muscles to say one word. See more

10% of human dry weight comes from bacteria. See more

A cow gives nearly 200,000 glasses of milk in her lifetime. See more

In Switzerland, it's against the law to slam your car door. See more

A cat has 32 muscles in each ear. See more