Perhaps a little religious study would boosted their progress. The Jewish Kosher laws have long been designed to shield animals from torture . The Kosher way is to cause the animal to lose consciousness as painlessly as possible during slaughter. http://www.earthintransition.org/2012/07/scientists-declare-nonhuman-animals-are-conscious/ http://en.wikipedia.org/wiki/Shechita
I take it you disagree with the Jews. Ok! But they did think about animal conscientiousness a few thousand years before these scientist reached the same conclusion.