Question

name any one animal which can sense the sound more than 20khs​

Answer 1

Answer:  Clarification first. There are animals such as Elephants and Hippopotamus who can detect (not produce though) infrasonic waves.  

And then there are animals which can detect and produce Ultrasonic waves. So in this answer, we are referring to Ultrasonic waves or Ultrasonic sound.  

Human ear can hear sound upto 20KHz. Waves above 20KHz are known as Ultrasound. Several animals such as Bats, Dolphins, Oil Bird, Whales, Mice, Frogs etc can detect and produce these sounds waves.  

Most of these animals (not all) are nocturnal and thus use this Ultrasound to safely travel at night in the dark.  

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Explanation: