Water bear (IMAGE) University of Tokyo Caption Here is a tardigrade captured by an electron microscope. Despite their minuscule size, they contain a bounty of biological secrets. Credit ©2022 S Tanaka, H Sagara, T Kunieda. Usage Restrictions Credit ©2022 S Tanaka, H Sagara, T Kunieda. License Original 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.