This image shows a cross-section of the cochlea within the inner ear of a reporter mouse. P2×7 receptor-expressing satellite glial cells and Schwann cells are labelled with GFP (green) and spiral ganglion neurons are immunolabeled for bIII-tubulin (magenta). See the article by Prades et al. for more information (pages 2615–2629). Cover image: Silvia Prades.