Robotic porpoise takes to the water in China’s Shenyang

Shenyang Aerospace Xinguang Group has spent over a decade developing robotic replicas of Yangtze finless porpoises, whale sharks, rays and other marine animals. The company even produced the world's first intelligent robotic whale shark. These products can be equipped with various sensors to monitor water quality, survey underwater terrain, and serve other special purposes.

(Intern Jiang Yinghan contributed to this story.)