Never. They don't exist in real life.
5 years
Last time I checked, she's 13.
It was spoted in 1867
The first time Uranus has been spoted by telescope by accident.
forever.
she turn into a mermaid in the last episode of season 2
You can't be a mermaid for any length of time. Mermaids are not real.
Mermaid Girl The Last Six Months - 2009 TV was released on: USA: 13 December 2009
Yes
In the Sims 3 Island Paradise your sims can become a mermaid. In order to become a mermaid, a mermaid must give you the mermaid kelp or in life time rewards you can purchase it. Your sim must be human to become a mermaid (not a vampire, wolf, etc.)
Mermaid Melody first aired on April 5, 2003.
spotted ,and yes they are