“Natural selection is the blind watchmaker, blind because it does not see ahead, does not plan consequences, has no purpose in view. Yet the living results of natural selection overwhelmingly impress us with the appearance of design as if by a master watchmaker, impress us with the illusion of design and planning.”
Bats and Echo-location machinery
One thing bats and echo-location machinery such as radars or sonars have in common is their method of locating physical objects. Engineers spend a lot of time and effort solving difficult mathematical models which explain how radars and sonars work. Then they have to use a lot of effort protecting this intellectual property. Especially, in the time of war, those how have better echo locating technology can gain significant advantage.