[en] Coiling of lugworm feces reveals universal mechanics for the shape of poo 💩
[fr] L'enroulement des excréments du ver de vase révèle les mécanismes universels qui déterminent la forme des excréments
Article Open access 28 April 2026
L'abstract ne dit pas si les excréments penchent à droite
Coiling of lugworm feces reveals universal mechanics for the shape of poo - Nature Communications
Coiled animal excreta have fascinated naturalists since Darwin’s observations of earthworm castings, yet the physics are poorly understood. Authors study lugworm feces to provide a mechanical framework for fecal shape and how waste disposal in animals creates distinct buckling regimes.