A robot with a rat's living brain!!!!

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The news is from around April, but I don't know if it was big because I just heard of it now, but this is mind blowing, and I don't even know if I can say if this is good or bad, have we gone too far, or can we benefit greatly by this advancement to "X" out the bad? "The neurons are now being taught to steer the robot around obstacles and avoid the walls of the small pen in which it is kept." "By studying what happens to the neurons as they learn, its creators hope to reveal how memories are laid down." "The brain cells have been taught how to control the robot's movements so it can steer round obstacles and the next step, say its creators, is to get it to recognise its surroundings." The full article is here: http://news.bbc.co.uk/2/hi/technology/7559150.stm