Sophisticated Cellular Organisation (IMAGE) Spanish National Research Council (CSIC) Caption These are researchers at work in laboratory. Credit LUCAS MELCÓN / CSIC Communication Usage Restrictions This image may only be used with appropriate credit. 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.