Researchers at Harvard have devised and built a tiny robotic insect known as a Micro Air Vehicle (MAV). The only trouble is it doesn’t fly – yet. The tiny robot is small enough to fit on a 50 cent piece, and is built using the principles of origami – it begins life as a flat structure and then is ‘folded’ into a 3D object. When the problems of flight are solved, the Harvard boffins believe the MAVS can be mass produced. Possible uses might be, depressingly, pollination, or searching for lost hikers. Swarms of flying MAVS may also be made use of for going into dangerous areas, such as chemical spills or earthquake zones, to search for survivors by sensing the carbon dioxide of their breath.