In the mountains of China, robot dogs have found a truly useful purpose — helping with garbage collection in the Tai Shan area. These iron workers now carry heavy containers filled with trash bags up the steep mountain stairs. What was once a physically demanding task for human workers is now made easier with these robots, as they effortlessly transport the heavy loads. Meanwhile, the human workers can walk alongside, with less strain (unless, of course, it’s just for the social media shot!)