This image provided by AeroVironment Inc., shows a life-size Hummingbird-like unmanned aircraft, named Nano Hummingbird, developed by AeroVironment Inc., for the Defense Advanced Research Projects ... more 
This image provided by AeroVironment Inc., shows a life-size Hummingbird-like unmanned aircraft, named Nano Hummingbird, developed by AeroVironment Inc., for the Defense Advanced Research Projects Agency (DARPA). The prototype has a wingspan of 6.5 inches, weighs two-thirds of an ounce and has a body fairing shaped like a real hummingbird. less 
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Associated Press | Photo By AeroVironment Inc.
Wed, Mar 2, 2011 12:52 AM EST