Biologically inspired drones may be seen more often in future UAVs, but it’s nothing new. The CIA created a nano-sized drone of their own back in the 1970s. At a time when the government required a miniature listening device, they invented a mechanical bumblebee. Their initial design was too difficult to control, so they ditched the idea and invented the Insectothopter, a mini dragonfly drone. The CIA found some success in their drone design, but it was never operational because of its problem with wind. Regardless, a nature inspired insect drone was still created nearly 50 years ago, and proof can be seen in this video: