Digitally cropped 3D model (IMAGE) University of Bonn Caption of the head of a common earwig (Forficula auricularia). Clearly visible are the strong muscles with which the animals close their mouthparts. Credit © Peter T. Rühr Usage Restrictions This image may be used together with the press release. 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.