If you’ve ever run a marathon, you know that it is a long and grueling race. Running 26.2 miles is definitely something that most people can’t do, at least not without a lot of training and effort.

Unitree Robotics recently dazzled us with its R1 humanoid robot, and now it’s unveiled something even more astonishing: a super-robust dog-like robot called the A2 Stellar Explorer. In a video ...