“Echolocation pulses can change depending on how fast a bat is flying or what they’re looking for. ‘Feeding buzz,’ when a bat might be closing in on an insect for dinner, is a burst of rapid pulses also used when they are flying closer to an object like a cave with a tight entrance.
The sounds can be converted into the human hearing range, too. Some zoos and bat exhibits can monitor bats’ echolocation calls in real time, Hernandez said.”
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