Bat uses FM Frequency

Echolocation is the biological sonar system used by some animals to navigate or locating prey. They emit ultrasounds in various frequencies that reflect back from the objects. These animals have special ear and brain adaptations to detect the reflected sound. Echolocation is found in animals like Bats, Toothed Whales, Shrews, Dolphins and in some birds. The interesting feature is that Bats emit FM frequencies for precise range discrimination and localization of the target.

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