The new technology, inspired by bees and other flying insects, means conventional motors and gears are no longer needed to fly the devices. It could pave the way for smaller, lighter and more effective, micro, flying robots for environmental monitoring, search and rescue, and use in dangerous environments like collapsed buildings. Known as micro air vehicles, small, flying robots are better than other drones at manoeuvring in tight spaces and resisting air turbulence. The robots could be used for environmental monitoring and search and rescue operations. What could be the major challenge in making the robots ?

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