"Let's slide Wonder Dog into a modern setting in Teen Titans. But let's make him edgy and tough, for teenagers! Scooby Doo is for babies!"
In case you're not immediately familiar with 1970s superheroes, we'll give you a crash course. The Super Friends were a conglomeration of superheroes and Wonder Dog was a dog. The poor man's Wonder Twins to Wonder Dog's poor man's Gleek came in the form of two kids named Marvin and Wendy, whose super powers included "taking care of Wonder Dog" and "not having any superpowers."
If the dog you're "taking care of" has superpowers, your only responsibility is cleaning up his shit.
Recently, the writers of Teen Titans decided to reintroduce Marvin and Wendy as the caretakers of the Titan's secret hideout: a giant building shaped like a T, (for "Titan." Or "Teen." Or "ReTarded."). Because no one wants to watch two irritating, non-fucking teenagers in a cartoon about superheroes, Wonder Dog was re-introduced as Marvin and Wendy's adorable pet.
Little known fact: "Muh muh" is the only sound one can make when faced with pants-shitting terror.