Rice Gone Wild (IMAGE) Washington University in St. Louis Caption This image shows a sampling of weedy rice strains from an Arkansas rice field. Modern agriculture is radically changing the selection pressures acting on rice and weedy forms are evolving that have the traits of wild ancestors and are aggressive competitors. Credit Ken Olsen Usage Restrictions None 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.