The DNA known as "FOXP2 is crucial to learning the sophisticated flicker of lips and tongue with which we express our thoughts". (Matt Ridley) This is the same gene for humans as birds. Twitter, twitter. oh, sayeth the sloth. Leland -- To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: <http://listserv.icors.org/archives/bullamanka-pinheads.html>