An aerial drone photo taken on March 13, 2025 shows fishers driving boats to the fish farming area at a marine ranch in Rongcheng City, east China's Shandong Province. (Photo by Li Xinjun/Xinhua)
BEIJING, March 31 (Xinhua) -- At the National Innovation Center for Digital Fishery in Beijing, two robotic fish with a sleek, metallic finish swim gracefull
