“…When threatened, the beetle squeezes fluid from the reservoir to the reaction chamber, where a mixture of enzymes (catalases and peroxidases) triggers the reaction, which takes the form of release of oxygen from hydrogen peroxide and oxidation of hydroquinone to quinones by the freed oxygen [ 2 ]. The fluid mixture is ejected at a speed of 6 m/s [ 3 ] at a temperature of up to 100°C [ 4 , 5 ], and up to a distance of 20 cm [ 6 ]. This produces a distinctly audible popping sound, hence the name bombardier [ 4 ].…”