Have you ever wondered by the organs used to reproduce are either the same or in very close proximity to the organs used to expel waste?
I mean, seriously! Who would think of putting two and two together (literally)? And who thought, “Hey, let’s stick this waste-emitting organ in that opening that is around the same place as waste is emitted from that person! I wonder what it does?”
Clearly there was no logical reasoning behind it (logic was invented during the Spanish Inquisition), so it must have been natural instinct.
Natural instincts are pretty smart, says I. Natural instincts are pretty cool.