A four-legged robotic boat inspired by fishing spiders could help rescue people from drowning by tracking and retrieving victims directly from the water. Robot tracks victims, retrieves The system is aimed at a critical gap in maritime search and rescue. “The prompt extraction of victims from water is crucial in water surface rescue missions,” wrote Lianxin Zhang, Yihan Huang and Huihuan Qian in their paper. This paper presents QuadBoat, a bio-inspired USV designed to track and retrieve victims from water.” The researchers believe the robot could eventually assist emergency teams responding to boat crashes and other maritime accidents.