This image for day 72 of #LMB365 shows the body wall muscle structure of the worm C. elegans using an F-actin dye. Soudi Imanikia in Rebecca Taylor’s group in the Neurobiology Division studies age-related muscular degeneration as part of their studies on neurodegeneration. Worms are fixed prior to the experiment and F-actin is used to observe the muscle fibres.