Marine communities do not follow the paradigm of increasing similarity through time. - Kitchel, Zoë J.; Maureaud, Aurore A.; Fredston, Alexa; Shackell, Nancy; Mérigot, Bastien; Thorson, James T.; Pécuchet, Laurène; Palacios-Abrantes, Juliano; Palomares, Maria L. D.; Acón, Antonio Esteban; Belchier, Mark; Bono, Gioacchino; et al. (PLoS Climate, 2025)