Cooperative Bacteria (IMAGE) Max Planck Institute for Chemical Ecology Caption Positive feedbacks favor cooperative bacteria, which are part of a multicellular group (right). In contrast, individual bacterial cells that try to help others (left) do not benefit. Credit Department of Ecology at the Osnabrueck University Usage Restrictions None 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.