Owing to the inspiration of fish, researchers from Harvard University have created a school of underwater robotic fish. The robotic fish can navigate and find each other on their own and work together to complete tasks. Equipped with two cameras and three blue LED lights, these bionic robotic fish can sense the direction and distance of other fish. These robots are 3D-printed in the shape of fish, with fins instead of propellers and cameras for eyes. Besides, they light up with LEDs due to the imitation of nature’s innovation of bioluminescence. The LED pulses ch...