Corn Fire (2 of 3) (image) University of Cincinnati Share Print E-Mail Caption UC professor Alan Sullivan's research is challenging the assumption that prehistoric people subsisted on corn in America's Southwest. Instead, he said evidence suggests they used fire to cultivate wild foods. Credit Joseph Fuqua II/UC Creative Services Usage Restrictions None Share Print E-Mail 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.