The bombardier beetle’s violent method self-defence can now be applied to defending bank cash machines, as explained in this study be researchers at ETH in Zurich, Switzerland: “Self-defending anti-vandalism surfaces based on mechanically triggered mixing of reactants in polymer foils,” Jonas G. Halter, Nicholas H. Cohrs, Nora Hild, Daniela Paunescu, Robert N. Grass and Wendelin […]