What is catdog real?

CatDog is an American animated television series created by Peter Hannan for Nickelodeon. The series premiered on April 4, 1998, and ended on June 15, 2005, with 68 episodes and four seasons. The show follows the lives of two conjoined brothers, Cat and Dog, who share a body but have very different personalities. Cat is sophisticated and enjoys the finer things in life, while Dog is more energetic and reckless. Together, they navigate their way through life and their many adventures. The show was popular during its run and has since gained a cult following.