[UPDATE: This isn't a defense of theism or religion. If that's what you're looking for, you've got the wrong argument from tigers. Feel free to look around while you're here though. For more on my views on religion, click on the "religion" label to the right. In brief, I'm an atheist but not an evangelical one.
UPDATE: This isn't an argument for vegetarianism either. Roughly speaking, it's an argument for tigers. And it's an argument from tigers. Basically: tigers, therefore tigers, or: tigers are awesome, therefore it is good that there should be tigers. This probably sounds silly, but it's a response to an argument to the effect that it might be good if tigers did not exist. My response is that this is absurd, and evidently so to anyone with a proper understanding of what tigers are. For more, read on below.]
Jeff McMahan has an article in which he argues "that we have reason to desire the extinction of all carnivorous species." Spiros calls it "terrific and provocative." It is not terrific, and what it provokes in me is a kind of grinding despair. It would be all too easy to have an animated, "Ah, but that's precisely where you're wrong!" kind of discussion of this piece. It would be impossible to have what I would consider a serious discussion of it, except as pathological. Stephen Mulhall might offer a very insightful analysis of just what is wrong with this kind of thinking (in fact I think he has already addressed McMahan's work in The Wounded Animal), but I don't see how it could be taken seriously as a piece of thinking. This (i.e. what I have just written) is not an argument, of course, but I'm not sure how to argue with something like this.
Early analytic philosophy was connected with modernism. I wonder whether it has degenerated into a form of post-modernism, something essentially playful (see the jokey end of McMahan's essay: "I await the usual fate of heretics when this article is opened to comment"), essentially unserious.