By the late 60's and mid-70's, other furry favorite cartoons had sprung up such as Josie and the Pussycats , Alvin and the Chipmunks , Gummi Bears , Muppet Babies , Scooby-Doo , ALF: The Animated Series , Teenage Mutant Ninja Turtles , Looney Tunes , and Tom and Jerry , to