Chalk is created from the skeletons of ancient ocean and sea creatures.

There is a jellyfish called the Turritopsis nutricula which can turn back to a young jellyfish after is becomes a adult

                      Tasmanian Devils sometimes sneeze to challenge an opponent to a fight.

                                                       
                                           The 'OK' symbol means 'pay me' in Japan.

                                 Some musicians that have amnesia still remember how to play an instrument.

                                                                        A black hole could weight as much as 10 billion suns.

                                                                      Pumice is the only rock that can float.

                                             Studies show that painting your room blue makes you more creative.
 

                                                             A long time ago a lake the size of England was in the Sahara desert.

                                                            If put in water the planet Saturn would float. 

It takes more than 100,000 average giraffes stacked on top each other to reach the outer layer of Earth's atmosphere.

                                                    The first Jack-O-Lanterns were made from turnips not pumpkins.

                                                            Some sharks can survive without food for 6 weeks.

                                                                 Men are color-blinded more often than women.

                                                         A billion years ago, the days on Earth were only 18 hours long.

                                                             A queen be can lay up to 2000 eggs in the Spring.

                                                                      Some pigs are afraid of mud.

                                 The oldest chocolate ever found was 2,600 years old and was found in a pot in Belize.

                                                   Earlier versions of lacrosse sometimes had up to 2000 players.

                                 The North pole on the planet Uranus get's no sunlight for about 42 years each time.