Similar creatures, Merman · Siren · Undine. Mythology, World mythology. Country, Worldwide. Habitat, Ocean, sea. In folklore, a mermaid is an aquatic creature with the head and upper body of a female human .. Children often ask if the "mermaids" are real. The park's PR director says "Just like with Santa Claus or any other Folklore · Near East, Ancient Greece · One Thousand and One · Western Europe. Mar 26, - Man splashes £1, to become real-life merman: 'My friends love a merman after he first watched Disney's The Little Mermaid as a child.