By Feb 24, 2014 01:36 PM EST To discover the lifestyles of our past ancestors, studying plaque will be more important than teeth, researchers from the University of York, along with Swiss and Danish colleagues, said. Advertisement © 2016 HNGN, All rights reserved. Do not reproduce without permission. 0 COMMENTS CLOSE COMMENT Get HNGN’s Top Stories Newsletter Everyweek You have already subscribed. Thank you.