Loops (IMAGE) Brown University Caption A new study characterizes the defect patterns in an active matter system. The defects tend form loops that form and annihilate spontaneously. Credit Duclos et. al. 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.