Site Locations (IMAGE) Washington University in St. Louis Caption In a figure from the paper, "The prehistoric roots of Chinese cuisines: Mapping staple food systems of China, 6000 BC - 220 AD," Liu and Reid mapped site locations with isotope (white circles) and archaeobotanical (black triangles) data along with shaded areas representing different culinary traditions in China after 2000 B.C. Credit Courtesy PLOS ONE Usage Restrictions For editorial purposes License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.