Spy Fly - More than just a normal fly

Guess what's that tiny transparent device is?

Can you believe this is a spy fly? I wonder how it really fly?

'Spy fly' is actually a form of tiny robot as a size of a housefly. I could be used as an espionage tool to keep tabs on terrorist or wandering spouse. In addition, it could also like fly through the rubble of an earthquake searching for survivors - via SFGate.com

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