That does not specifically ring a bell, but Radio Lab did a piece on this topic once. Perhaps it's in there: http://www.radiolab.org/story/262588-bitter-end/ h

That does not specifically ring a bell, but Radio Lab did a piece on this topic once. Perhaps it's in there: http://www.radiolab.org/story/262588-bitter-end/ http://www.radiolab.org/story/262588-bitter-end/