As a science, creating robotics that are self aware is a field that is on the verge of creating artificial intelligence. Hod Lipson has a great TED talk in which he introduces two robotic experiments that touch on self awareness and evolution. One is a four legged machine that becomes self aware and teaches itself to walk. It is a fascinating and somewhat scary thought that we can create machines that have an understanding of a goal and not only have the means to reach the goal, but have the means to teach themselves to reach the goal.