■Vhy quadruped robot? Wheeled vehicles need prepared surfaces -Almost half of earths land surface is inaccessible to them Legged animals can move over most of earths land surface legged machines should also be able to Why quadruped robot? Wheeled vehicles need prepared surfaces  Almost half of earths land surface is inaccessible to them Legged animals can move over most of earths land surface  legged machines should also be able to