UNIVERSIDAD DE BARCELONA (IMAGE) University of Barcelona Caption Los investigadores Margalida Rosselló-Tortella, Manel Esteller y Pere Llinàs-Arias. Credit UNIVERSIDAD DE BARCELONA Usage Restrictions The image may only be used with appropriate caption or 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.