Nissan last week unveiled EPORO, a robot that uses technology to avoid collisions and maintain a uniform distance between itself and other robots. The company says the robots mimic the behavior of fish traveling in schools."In EPORO, we recreated the behavior of a school of fish making full use of cutting-edge electronic technologies," said Toshiyuki Andou in a release. Andou, manager of Nissan's Mobility Laboratory and principal engineer of the robot car project, continued: "By sharing the surrounding information received within the group via communication, the group of EPOROs can travel safely, changing its shape as needed." The robots use laser ranging to avoid collisions and communicate to maintain an optimum distance and speed.