Biped locomotion robot attempting to walk. This robot, designed by Toshio Fukuda, is intended to test 'hierarchical evolutionary algorithms', or software that repeats an action, learning from its mistakes until it approaches perfection. After months of trying, the robot is still unable to walk with its arms attached; they can be seen on the table at upper right. The researchers are hoping that if a machine can teach itself to walk, it will bring them a step closer to understanding the same process in the human brain. Photographed in the Fukuda Lab at Nagoya University, Japan.