I don't care what those self-righteous anuses think or say, I think this stuff is a great boon to humans and other critters:
http://www.reuters.com/article/scie...src=041907_1905_ARTICLE_PROMO_also_on_reuters
http://www.reuters.com/article/scie...src=041907_1905_ARTICLE_PROMO_also_on_reuters