What has six legs, four wheels, and two karate-chopping hands? Centauro is the latest experiment by scientists to find the most adaptable and useful body-shape for robots designed to help in disasters. Usually, these machines are built like humans, with two arms and two legs, but researchers are increasingly finding that hybrid designs offer more flexibility. With its four wheeled legs, Centauro is more stable than a humanoid bot, but still retains the two forward-facing arms needed for manipulating objects like tools and doors. As reported by IEEE Spectrum, Centauro's design builds on that of Momaro, another centaur-robot designed by researchers from the University of Bonn. Momaro was the top European performer at DARPA's Robotics Challenge in 2015, which tested the ability of robots to carry out the sort of tasks they might face in a search-and-rescue mission.