Experimental Setup (IMAGE) Max Planck Institute for Chemical Ecology Caption Experimental setup in the field: eggs, a young caterpillar and a predatory bug that has just arrived, all are located on the bottom of the tobacco leaf. Credit Max Planck Institute for Chemical Ecology/Danny Kessler 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.