Only bats do this. They make a high-piched squeak. The sound waves from the noise; if they are "bounced" of a object and heard again by the bat, the bat then knows that there is an object there and can thus avoid it.
Bats use echolocation to navigate in the dark, emitting high-frequency sounds that bounce off objects and return to their ears. By interpreting these echoes, bats can detect obstacles and fly safely in the dark without colliding with them.
Sonar uses echoes to locate objects by bouncing sound waves off them and detecting the echoes.
Sonar
radar
sonar
radar
sonar
The bat uses their echoes of their cries to know where the prey is.
Ultrasound imaging uses the echoes of sound waves to create images of deep structures in the body. High-frequency sound waves are transmitted into the body and the echoes that bounce back are used to create real-time images of internal organs and tissues.
radar
Bats can move in the dark because they use echolocation to navigate and hunt for prey. They emit high-frequency sound waves and listen for the echoes that bounce back off objects, allowing them to "see" their surroundings in the dark. This adaptation helps bats effectively maneuver and catch insects even when visibility is low.
A home