Cross-section of an entire earthworm (IMAGE) Max Planck Institute for Marine Microbiology Caption The image shows a cross-section of an entire earthworm, images with two techniques: Mass spectrometry imaging (left) and fluorescence microscopy (right). The different colors of the mass spectrometry imaging data show the distribution of different metabolites in the tissue, whereas the fluorescence microscopy shows the tissue structures underlying the chemical distributions. Credit Max Planck Institute for Marine Microbiology/B. Geier Usage Restrictions Only to be used in the context of this publication and citing the correct copyright. 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.