Mind explaining how? Because I think that's tough to do, unless you like jelly-cows. ... I think it's pretty obvious that bone meal and leather (which proceeds after it in my list) are end-of life byproducts (which doesn't negate their usefulness, nor does it negate the argument). Either you missed a winky-face there, or you're being purposely obtuse. I'm into electric cars, man. But i buy used and fuel efficient (my 2004 vibe gets 29-30 mpg on the highway, which is pretty good for having all the other features I need including carrying two of these when necessary). As I alluded to in my first and second paragraphs, I don't have a problem with the ideas presented in this article, I have a problem with HOW they are presented.From a living animal?