Mermaids

     Pirates believed that mermaids brought bad luck.  When a mermaid appeared it was believed that the ship would soon sink.  The pirates would "shake in their boots" when one was sighted.  Mermaids were just about the only thing that frightened the pirates.  It is believed by scientists that mermaids were actually an animal called the manatee.  This creature has a long flat tail and swims close to the surface of the water.  They are friendly creatures that might even swim up to the side of a ship.  The trouble with the pirates is that they didn't look long enough at the creature, they just ran and hid in fear.