1. Certain moths use their sensitivity to ultrasonic sound to detect and evade echolocating bats. By hearing the ultrasonic calls, moths can perform evasive maneuvers or even produce their own ultrasonic clicks to confuse predators.

    Certain moths use their sensitivity to ultrasonic sound to detect and evade echolocating bats. By hearing the ultrasonic calls, moths can perform evasive maneuvers or even produce their own ultrasonic clicks to confuse predators.

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  2. Frequencies higher than 20 kHz are called ultrasonic sounds. Animals that produce these sounds include bats for echolocation, dolphins for communication and navigation, and some insects like moths for predator detection and evasion.

    Frequencies higher than 20 kHz are called ultrasonic sounds. Animals that produce these sounds include bats for echolocation, dolphins for communication and navigation, and some insects like moths for predator detection and evasion.

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  3. Some animals might detect earthquakes before humans due to their heightened sensitivity to seismic waves and changes in the environment, such as shifts in electromagnetic fields, enabling them to sense tremors and vibrations that precede an earthquake.

    Some animals might detect earthquakes before humans due to their heightened sensitivity to seismic waves and changes in the environment, such as shifts in electromagnetic fields, enabling them to sense tremors and vibrations that precede an earthquake.

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  4. Elephants use infrasound for communication, with frequencies as low as 14-35 Hz. Blue whales also communicate using infrasound, producing calls between 10-40 Hz that can travel across vast ocean distances.

    Elephants use infrasound for communication, with frequencies as low as 14-35 Hz. Blue whales also communicate using infrasound, producing calls between 10-40 Hz that can travel across vast ocean distances.

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  5. The minimum distance required for hearing distinct echoes is calculated using the formula: distance = speed of sound × (time for echo to return) / 2, ensuring the echo delay is at least 0.1 seconds for perception.

    The minimum distance required for hearing distinct echoes is calculated using the formula: distance = speed of sound × (time for echo to return) / 2, ensuring the echo delay is at least 0.1 seconds for perception.

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