A team of Singaporean researchers has created an innovative miniature diving suit that allows cockroaches to breathe underwater for up to three hours. The idea is that this development will help save people — Madagascar hissing cockroaches will be able to operate in flooded areas. Professor Hirotaka Sato and his colleagues previously demonstrated that cockroaches can be controlled remotely by placing electrodes on their sensory organs. This turned the insects into living drones for searching for survivors in disaster zones. However, cockroaches do not tolerate water well, which limited their use in flooded areas. The researchers developed a diving suit made of resin, printed on a 3D printer. It does not have an oxygen tank. Instead, it uses a mixture of hydrogen peroxide and manganese dioxide, which react to release oxygen. The suit delivers oxygen to the cockroach's spiracles, allowing it to stay underwater for up to three hours. During testing, the suit showed excellent results: cockroaches moved underwater at speeds of up to 78.4 mm/s — just 10 mm less than their average speed on land. The suit hardly restricts the mobility of the insects. Cyborg cockroaches are already being used in real search and rescue operations — for example, during the earthquake in Myanmar in the spring of 2025. However, the scientists have more ambitious goals: they dream of one day using insects to explore the surface of Mars.