The domestic dog has been one of the most popular working and companion animals throughout human history.

In the 19th century, it was common practice for a Japanese woman to dye their teeth black. They believed that this enhanced sex appeal and maintained healthier teeth.

The name of the popular search engine 'Google' came from a misspelling of the word 'googol', which is a very, very large number (the number one followed by one hundred zeros to be exact).

AMAZING FACTS