Infrasonic vibrations can be heard by which animals and can be produced by whom?

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Solution

The sound of frequencies lower than 20 hertz is known as infrared sound.Infrared sounds are not heard by human beings.Infrared sound are produced by objects which vibrates very slowly.
Animals like whales, elephants and rhinoceroses produce infrasonic sound of frequency 5 Hz
Here is the full list of animal who can hear infrasonic sound.
Pigeons
Guinea fowl
Cod
Cuttlefish
Octopus
Squid
Elephants
Whales
Hippos
Rhinos

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