"Buff, what is a fish and what is a mammal is NOT a petty detail in a serious discussion of the story of Jonah."
I'm fully aware of that, and I agree. But when I'm indirectly placed on the level of a third grader, that's something else. Apparently, you missed the thrust of my response. The nit-picker said, "A third grader knows that."
Need I explain further? If not, let's drop it, for I have more important matters that need my attention, and probably yours, too.