Dogs held it to be self-evident that they were the higher species. They had been, over millennia, bred by humans to have superior genetics, which was obviously proof of their superiority. Cats argued that they were already perfect, so they did not need to be bred to be moreso. Dogs illustrated that they were capable of learning commands and serving people. Cats pointed out that they caught rats, and were cute. Dogs reminded the cats of their ability to read and understand man. Cats ended the argument by pointed out they were smart enough to get man to serve THEM.