Mermaids half human and half fish, are common in European and Near Eastern folktales. As such, mermaids live in an ‘in between’ sort of world. Their lives and actions under the sea, an environment alien to humans, parallel the human world, and mermaids often interact with their human counterparts. What is the truth in the mermaid story? Well the idea of beings who are similar to humans but live in an environment where human beings cannot is wide-spread and doesn’t need more explanation than our own desire to populate the universe with creatures similar to us.