Echolocation may refer to: Acoustic location, the general use of sound to locate objects Animal echolocation, non-human animals emitting sound waves and listening to the echo in order to locate objects or navigate Human echolocation, the use by people of sound to navigate Sonar (sound navigation and ranging), the use of sound to navigate or to locate other watercraft, usually by submarines Echo sounding, listening to the echo of sound pulses to measure the distance to the bottom of the sea,… (More on Echolocation)