Robots that mimic the behaviour of fish have been developed by Japanese car firm Nissan, who believe the technique can be used in crash avoidance systems.
The tiny robots, called Eporo, can move in a fleet without bumping into their travelling companions.
It is the second time the firm has looked to the animal kingdom for inspiration for its designs.
Last year, the manufacturer unveiled its BR23C robot, which was modelled on the behaviour of bumblebees.
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