The next time you're harassed by a bee, look closer. It just might be Mobee, a robotic insect, that's spying on you.
Developed at the Harvard Microrobotics Laboratory, the Mobee (from "Monolithic Bee") can buzz around performing tasks such as surveillance -- or even pollinizing plants. Harvard's mechanical bee weighs about as much as a real one (roughly one-tenth of a gram), is about the size of a quarter, and, like a real insect, has a pair of fluttering wings, a thorax, and stabilizing halteres (small structures which operate like gyroscopes).
Unlike an insect, Mobee also has a battery, microprocessor, sensors, transmitter, and antennas and is made from 18 layers of different materials that assemble like a child's pop-up book.