But then there is the "grimace index" experiment, where scientists at McGill University in Montreal tortured mice, increasing the amounts of pain to measure fac

But then there is the "grimace index" experiment, where scientists at McGill University in Montreal tortured mice, increasing the amounts of pain to measure facial expressions. There was a public outcry, but the researchers still got plenty of citations. http://www.nature.com/news/2010/100509/full/news.2010.228.html http://www.nature.com/news/2010/100509/full/news.2010.228.ht...