A study has shown that a male zebra finch is less likely to court a female zebra finch if he did not form any social friendships with female zebra finches when younger. | The rarest chocolate bar in the world is the Porcelana bar. There are only 20,000 of these bars produced a year, and they sell for $90 per pound. | A rhinoceros horn is made of compacted hair. | The ruby red slippers in the movie "The Wizard of Oz" were sold off at an auction for $660,000. | In Switzerland, it is illegal to own only one guinea pig because they are prone to loneliness.

A year from now you will wish you had started today.