Wienhausen and Simon (IMAGE) University of Oldenburg Caption Gerrit Wienhausen (right) and Meinhard Simon demonstrated for the first time that bacteria are capable of complex interactions in order to jointly produce a vital vitamin. Credit University of Oldenburg / Marcus Windus Usage Restrictions Use only in connection with press release and 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.