This month in Cell Stress: Cellular tunneling nanotubes (TnTs) in development. Stylized image depicts a TnT structure in adherent mesothelioma cells stained with DAPI (red) and anti-fascin antibodies (yellow). Image modified by Cell Stress. Image Source: Lou E, Fujisawa S, Morozov A, Barlas A, Romin Y, et al. (2012) Tunneling Nanotubes Provide a Unique Conduit for Intercellular Transfer of Cellular Contents in Human Malignant Pleural Mesothelioma. PLOS ONE 7(3): e33093. https://doi.org/10.1371/journal.pone.0033093. Original image licensed under the CC BY 4.0 license. The cover is published under the CC BY 4.0 license.