The series never explain what happened to Yin & Yang's mother.
The series is supplied with writers and animators' staff associated with the Fairly OddParents, Danny Phantom, Clone High, 6teen, ChalkZone, Invader Zim, My Life as a Teenage Robot, Total Drama, and Courage the Cowardly Dog.
Second TV series created by Bob Boyle (The first series being Nick Jr.'s Wow! Wow! Wubbzy!).
The voice actors in the show are all Canadian.
Scott McCord, Novie Edwards, and Megan Fahlenboch also worked on Total Drama as Owen, Leshawna, and Gwen.