Yes, yes. Good point. Though if we consider the evolution of one species, I can conclude that Magmortar's face is in fact, ½ butt (one buttocks, if you will). There is no mistake in it. I agree with you on the Sperm Whale. A lot of things resemble torpedoes, but there is no evidence of any actual similarity between the Sperm Whale and a penis. There is more to a penis than its length, there is also shape. If you consider the shape of the Sperm Whale, and compare it to that of an actual penis, there are a lot of differences to be found. Moreover, if you compare a Sperm Whale calf to a penis, you will not be able find any more similarities to a phallus than you would in the adult. Therefore we can conclude that the Sperm Whale does not resemble a penis. However, we know for a fact that Magmortar and Magmar are one and the same species. Magmar's forehead is a butt, this is a fact. Therefore we can conclude that Magmortar's forehead must be (part of) a butt as well. Once a butt, always a butt.