Percolation in Action (IMAGE) University of California - San Diego Caption Brewed coffee, oil extraction, and now communication in bacterial communities can be explained by a phenomenon known as percolation. Credit Suel Lab, UC San Diego Usage Restrictions Image to be used in conjunction with Cell Systems paper on percolation in bacterial communities. 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.