Question

how the bats use ultrasound to detect its prey

Answer 1

Answer:

bats let out ultrasonic waves [ the way how we yell ] .

These waves hit their prey and bounce back to them .

By this , the bats can detect of how large and how far the prey is .

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Answer 2

Explanation:

They give out their ultrasound waves which struck any object or prey come back to them. They don't have eyes to see. This is how they catch thier prey and only bats can fell this ultrasonic waves.