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Yes they do! Bats make sounds by moving air past their vibrating vocal chords. The echolocation sound has an extremely high pitch. A bat emits a sound wave and listens to the echoes that return to it. The bat's brain processes the information and by determining how long it takes a noise to return, the bat's brain figures out how far away an object is. This ability may help a bat tell where an insect is at any time of the day (usually night), and even how big it is.

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14y ago

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