Interference of sound and sonar disturbance by bats


Bats find their prey by sonar. They emit a sound and receive it back when it bounces on objects in their surroundings. On basis of the time interval and the frequency of the returned sound signal the bat is able to “see” or audio locate a prey. Unfortunately there are several competitors. To stop the hunter from eating too much insects the competition jams or interferes the signal. In this way the hunter is fooled to believe that the prey is located on a slightly different position and misses its prey.

 

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