Military researchers have built a tiny drone that looks and flies like a hummingbird. It flaps its little robotic wings to stay in air like the real birds. The mock bird has only stayed aloft for 20 seconds at a time. But it has shown its capability as a spy in this short spick of time. AeroVironment doesn’t just want the little drone to fly like a bird but also look like one. So it has been given by DARPA another $2.1 million to build a humming bot version 2.0. So don’t get so excited when you see a small tiny animal or a bird watching and just looking at you! It could be a drone spying on you!

[Wired]