Bridging the gap between science fiction and reality, a Chinese robotics firm on Tuesday unveiled a manned “mecha” capable of transitioning between bipedal walking and four-legged mode. Developed by Unitree Robotics, the GD01 – resembling an Autobot from a Transformers movie – is a high-strength alloy machine designed for civilian transport. It weighs 500kg with a pilot on board – roughly the weight of a grand piano – and carries a starting price of 3.9 million yuan (US$573,674), according to...