This may sound like a stupid question, I know that in full. I had to laugh a bit about the word 'Porculus' and have more than a hunch by now what it refers to. But can you kind folks enlighten me a bit more (its history, for instance, and why of all animals the swine has been chosen)? I know, I know, I could have chosen Google etc. etc. I simply thought it better to ask it right here.