Australian researchers are equipping remotely controlled insects with cameras and miniature injection systems, raising the possibility that future rescue teams could send swarms beneath earthquake rubble to locate — and potentially treat — trapped survivors.
For someone trapped beneath the wreckage of a collapsed building, the sight of a giant cockroach crawling through the darkness would normally be the last thing they would want to see. In the future, however, it could signal that help has arrived.
Australian researchers have developed so-called “paraborgs” — living cockroaches fitted with electronic navigation systems, cameras and miniature medical injectors designed to reach people in spaces that human rescuers and conventional robots cannot safely access.
The experimental system, developed by biorobotics researchers at the University of Queensland in collaboration with biomedical engineers at the University of New South Wales, represents an important shift in the emerging field of cyborg insects. Rather than merely searching for survivors, the animals are being designed to provide basic medical assistance while rescuers work to reach them.
The researchers used the North Queensland giant burrowing cockroach, Macropanesthia rhinoceros, one of the world’s heaviest cockroach species. Its relatively large and powerful body makes it capable of carrying equipment while retaining the natural mobility that allows cockroaches to squeeze through confined, irregular environments.
Lightweight electronics attached to the insects allow human operators to guide their movement remotely. Electrodes interfacing with the cockroach’s nervous system provide directional stimulation, enabling operators to steer the animal through obstacles while receiving visual information from an onboard camera.
That capability is not entirely new. Scientists have experimented with electronically controlled insects for years, particularly for search-and-rescue missions.
What distinguishes the Australian project is the addition of a miniature medical intervention system.
Researchers have equipped some of the cockroaches with remotely activated auto-injection mechanisms capable of delivering small quantities of liquid medication to a target. The idea is that one insect could locate an injured survivor and provide a live video feed, while another could be sent into the same confined space carrying medication.
The medical decision would remain with a human operator rather than the insect itself.
In laboratory testing, the injection mechanism demonstrated encouraging results. The research published in the journal Advanced Science reported that the injector mechanism successfully delivered liquid in about 90% of trials. When a cockroach was positioned within 150 millimetres of the target, close-range injection succeeded as much as 95% of the time.
The more demanding task of navigating to a target, stabilising the animal and completing the injection was less reliable. The complete navigation-and-injection sequence succeeded in approximately 72% of trials, highlighting the engineering challenges still facing the system.
Precise positioning is particularly difficult because the researchers are working with living animals rather than rigid machines.
A cockroach can cross surfaces and obstacles that might stop a miniature wheeled robot, but its movement cannot be controlled with exactly the same mechanical precision. Before administering an injection, the insect must arrive close enough to the target and remain sufficiently stable for the device to operate safely.
Those limitations mean the technology remains experimental.
The laboratory trials used materials including silicone and pig skin rather than injured human patients, and researchers acknowledge that real disaster environments would present considerably greater difficulties. Collapsed buildings contain unstable debris, dust, water, exposed wiring, twisted metal and constantly changing pathways.
Communication would also be a major challenge.
Radio signals can be disrupted or blocked by reinforced concrete and dense rubble, potentially leaving operators unable to control or track an insect deep inside a collapsed structure. Future versions may therefore require more sophisticated relay systems or networks of insects capable of passing information between one another.
Yet the biological advantages are significant.
Cockroaches already possess locomotion systems refined through millions of years of evolution. They can climb, squeeze through narrow gaps, recover from falls and adapt their movement to extremely uneven terrain without requiring the complicated sensors, motors and software needed by conventional miniature robots.
Using the insect itself as the mobile platform therefore reduces the amount of hardware researchers must build.
Instead of attempting to engineer a tiny machine capable of reproducing a cockroach’s extraordinary mobility, engineers can concentrate on adding communication, sensing and medical equipment to an animal that already possesses those capabilities.
Researchers ultimately envision deploying groups of specialised cyborg insects rather than relying on a single animal.
Some could carry cameras. Others might carry environmental sensors capable of measuring temperature, humidity or hazardous gases. Additional units could transport medication or other emergency supplies. Together, they could form a distributed network moving through spaces inaccessible to rescuers.
Such a system could be particularly valuable following major earthquakes.
The hours immediately after a building collapse are critical. Rescue teams must determine where survivors are located while simultaneously assessing whether damaged structures are safe enough to enter.
Traditional search techniques involve rescue dogs, acoustic sensors, cameras inserted through gaps and increasingly sophisticated robotic systems. But each has limitations when confronted with extremely narrow or unstable passages.
A cockroach carrying a camera may be able to travel much deeper into those spaces.
The idea is no longer purely theoretical.
Cyborg cockroaches were deployed during Singapore’s Operation Lionheart response following the devastating 2025 earthquake in Myanmar. Ten Madagascar hissing cockroaches equipped with miniature thermal cameras and sensors were used to search areas of rubble considered difficult or dangerous for conventional rescue equipment to reach.
Those insects were primarily search platforms. The new Australian research attempts to push the concept further by transforming cyborg insects from scouts into active emergency-response tools.
The medical applications remain deliberately limited.
Researchers are not proposing that cockroaches replace paramedics or independently diagnose patients. Instead, the system could potentially deliver a carefully selected drug or emergency intervention under direct human supervision while conventional rescue teams attempt to extract the survivor.
In certain situations, even a small intervention could matter.
A person trapped for hours beneath rubble may require urgent medication long before rescuers can physically reach them. A miniature biological robot able to navigate through a gap only a few centimetres wide could potentially shorten that delay.
There are also ethical questions surrounding the technology.
The cockroaches used in the research are anaesthetised while electrodes and electronic equipment are fitted. According to the researchers, the navigation harnesses are removable and the insects can continue living normally after the equipment is taken off.
Animal-welfare regulation involving insects remains less developed than rules governing vertebrate research, however, and widespread use of cyborg animals could intensify discussion about how biological organisms should be incorporated into robotic systems.
There are practical safety questions as well.
Before a syringe-bearing insect could ever approach a human casualty, engineers would need to demonstrate extremely high reliability, prevent unintended injections and ensure that operators retain control of every medical action. Regulators would also have to determine what substances could safely be administered and under what conditions.
For now, the project remains a proof of concept rather than a technology ready for widespread deployment.
Its significance nevertheless lies in demonstrating how quickly the boundary between biology and robotics is changing.
Roboticists have spent decades attempting to build machines that replicate the mobility of insects. Increasingly, another approach is emerging: use the insect itself and augment it with electronics.
The result is a strange but potentially powerful form of biohybrid engineering — part animal, part machine and controlled by a human rescue operator.
If the technology can survive the transition from controlled laboratories to chaotic disaster environments, tomorrow’s earthquake-response teams could look very different from those of today.
Alongside firefighters, rescue dogs, drones and heavy machinery, emergency crews may eventually carry containers filled with electronically equipped cockroaches.
And for somebody trapped beneath tonnes of concrete, the approach of a tiny camera and syringe on six legs might become one of the most reassuring sights imaginable.
