Researchers from MIT and EPFL have developed a lightweight flapping-wing robot inspired by diving birds such as puffins, petrels, and kingfishers that can both swim underwater and transition directly into flight. By studying the biomechanics of these birds, the team designed a robot with flexible wings, a steerable tail, and a waterproof body that can efficiently move through two vastly different environments. Experiments in water tanks and Lake Geneva showed that the robot could reliably swim, leap out of the water, and continue flying without requiring propellers, folding mechanisms, or paddling feet.
The breakthrough could enable a new generation of aerial-aquatic robots for environmental monitoring and ocean exploration. Unlike conventional drones or underwater vehicles, the robot could rapidly fly to remote locations, dive underwater to collect measurements or samples, and return with the data at a fraction of the cost of traditional methods. The researchers are now working to improve the robot's maneuverability and its ability to operate in rough water and windy conditions, with future applications including marine ecosystem monitoring, coastal surveillance, and climate research.
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https://techxplore.com/news/2026-07-birdlike-robot-underwater-flight.html