Bacteria-Encoded Message (IMAGE) Duke University Caption Duke researchers have created an encryption method based on the patterns made by bacteria growing in a Petri dish. This example reads, "Be sure to drink your Ovaltine." Credit Lingchong You, Duke University Usage Restrictions None License Original 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.