Should cat girls have human ears? On a certain level, it doesn’t make any sense. Why do they need 4 ears? Do they have some kind of 5th-dimensional ultra-precise hearing? But consider the alternative. If they only have cat ears, they might be more biologically feline than human. While the cat-like reflexes and night vision might seem like perks, that would immediately make liking cat girls bestiality, which as we know is ridiculous. How can something so natural and perfect be so unholy? Additionally, if your waifu is a human crossed with a non-mammal animal, further complications would arise. The biological barrier would be too great and these waifus would lack organs and systems unique to mammals. To have cat girls with only cat ears would require you to give up all hopes of your dinosaur waifu. You know the one. Therefore, cat girls are simply human girls with some cat-like traits. The car ears would not be ears at all but simple fluffy pieces of flesh protruding from their skull. I rest my case.