odor collection at agave flowers (IMAGE) Max Planck Institute for Chemical Ecology Caption To collect the nocturnal odor of agave flowers, individual flower umbels on the up to five-meter-high inflorescence are enclosed in foil bags at sunset and connected to a mobile odor collection system. Credit Sonja Bisch-Knaden, Max Planck Institute for Chemical Ecology Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.