 In fact, in the cartoon, although very nice and very bright, Marvin was shown to be somewhat bumbling, often needing to learn the day's moral, such as looking up "photosynthesis" for himself rather than having Robin tell him.In the comics, however, Marvin and Wendy's cleverness and resourcefulness made them invaluable to the other Super Friends.The one notable resource Marvin provided to the Super Friends was his pet dog, Wonder Dog (or just "Wonder" for short), who was preternaturally intelligent, though bumbling as well.