Five years ago, the U.S Air Force unveiled insect-sized drones for both reconnaissance and lethal uses and subsequently stated that they would be ready by 2015, according to the Daily Mail.
The drones use the mechanics of insects and are reverse-engineered to resemble either a bug or bird.
According to the New York Times, re-producing the flight of a bug is relatively easy but producing a bird-like drone is more difficult and military scientists are focusing on developing one.
Researchers have developed drones with bug eyes, bat ears, and bird wings thus far, according to the Daily Mail.
Agencies intend to change this reality as seen in a DARPA symposium called “bugs, bots, borgs and bio-weapons,” the Mail reported.
DARPA, among many other agencies, are investing large amounts of capital into developing the next nano-drone.