Last year the British invented a robot that catches flies and digests them to generate its own power. ( [link] ) I wanna take this technology and build a robot that hunts down small animals, kills them, and sucks their blood out to generate its own power. :)
Not to rain on anyone's parade, but this fuel cell was designed specifically for reporting blood sugar levels in diabetics. The prototype was said to have had a low powered Wi-Fi chip so that the cell itself powers a device that measures the blood sugar level using a common enzyme present in all humans and then takes that measurement and broadcasts it via the low power Wi-Fi to a signal reciever held close to the skin. Thus diabetics would no longer have to draw blood to check their blood sugar levels.
Joe Cocomo