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  2. Animal echolocation - Wikipedia

    en.wikipedia.org/wiki/Animal_echolocation

    Echolocating bats use echolocation to navigate and forage, often in total darkness. They generally emerge from their roosts in caves, attics, or trees at dusk and hunt for insects into the night. Using echolocation, bats can determine how far away an object is, the object's size, shape and density, and the direction (if any) that an object is ...

  3. Acoustic location - Wikipedia

    en.wikipedia.org/wiki/Acoustic_location

    Animal echolocation, animals emitting sound and listening to the echo in order to locate objects or navigate; Echo sounding, listening to the echo of sound pulses to measure the distance to the bottom of the sea, a special case of sonar; Gunfire locator; Human echolocation, the use of echolocation by blind people; Human bycatch

  4. Electroreception and electrogenesis - Wikipedia

    en.wikipedia.org/wiki/Electroreception_and...

    Electroreceptive animals use the sense to locate objects around them. This is important in ecological niches where the animal cannot depend on vision: for example in caves, in murky water, and at night. Electrolocation can be passive, sensing electric fields such as those generated by the muscle movements of buried prey, or active, the ...

  5. Ultrasound - Wikipedia

    en.wikipedia.org/wiki/Ultrasound

    A common use of ultrasound is in underwater range finding; this use is also called sonar. An ultrasonic pulse is generated in a particular direction. If there is an object in the path of this pulse, part or all of the pulse will be reflected back to the transmitter as an echo and can be detected through the receiver path. By measuring the ...

  6. Doppler shift compensation - Wikipedia

    en.wikipedia.org/wiki/Doppler_shift_compensation

    These types of echolocation pulses afford the bat the ability to classify, detect flutter (e.g. the fluttering wings of insects), and determine velocity information about the target. [5] Both CF and CF-FM bats use the Doppler shift compensation mechanism in order to maximize the efficiency of their echolocation behavior. [4]

  7. Melon (cetacean) - Wikipedia

    en.wikipedia.org/wiki/Melon_(cetacean)

    The melon is structurally part of the nasal apparatus and comprises most of the mass tissue between the blowhole and the tip of the snout. The function of the melon is not completely understood, but scientists believe it is a bioacoustic component, providing a means of focusing sounds used in echolocation and creating a similarity between characteristics of its tissue and the surrounding water ...

  8. To keep whales safe, Coast Guard launches boat alert system ...

    www.aol.com/news/keep-whales-safe-coast-guard...

    The southern residents, which number just 75, use echolocation to hunt salmon. But ship noise disrupts that. But ship noise disrupts that. By slowing down, vessels reduce the noise they make.

  9. Echolocation - Wikipedia

    en.wikipedia.org/wiki/Echolocation

    Animal echolocation, non-human animals emitting sound waves and listening to the echo in order to locate objects or navigate. Human echolocation , the use of sound by people to navigate. Sonar ( so und n avigation a nd r anging), the use of sound on water or underwater, to navigate or to locate other watercraft, usually by submarines.