The reason why flamingos are pink is because they eat shrimp which have a red pigment.

The first known transfusion of blood was performed as early as 1667, when Jean-Baptiste, transfused two pints of blood from a sheep to a young man.

There are 21 "secret" highways that are part of the Interstate Highway System. They are not identified as such by road signs.

A M A Z I N G   F A C T S