IRON, a robot unveiled by Chinese EV giant XPeng, moved so much like a human that the company had to release a video after its debut to prove that it's in fact a machine. | CNN International

Charlotte, a spider-like 3D printing robot, was developed jointly by Australian companies Crest Robotics and Earthbuilt Technology. Developers said the robot can help make construction cheaper and carbon-free with its ability to utilize local materials. | CNN