Cells Huddle to Communicate (IMAGE) European Molecular Biology Laboratory Caption By huddling together, groups of cells can trap a signal molecule (green), communicating "in secret." Credit EMBL/S.Durdu Usage Restrictions EMBL press and picture releases including photographs, graphics and videos are copyrighted by EMBL. They may be freely reprinted and distributed for non-commercial use via print, broadcast and electronic media, provided that proper attribution to authors, photographers and designers is made. 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.