Elephants’ innate sense of hearing

This is phenomenal.

Did you know that elephants use infrasound (low frequency sounds) to detect storms? Infrasound is below the range of human hearing. The frequency of sound is measured in Hertz (Hz = cycles per second) and the infrasonic range includes all sounds below 20 Hz.

All adult elephants can make infrasonic calls.
Elephant rumbles usually have many harmonics – multiples of the fundamental frequency – and humans can hear these if the call is loud.
Other animals that produce infrasonic calls include whales, rhinoceros, giraffes, and alligators.
Infrasound is also produced by volcanic eruptions, earthquakes, avalanches, and the calving of icebergs.
Human activities that produce infrasound include the props of large ships, sonic booms, and wind turbines.
Infrasonic calls may travel long distances – even across the Atlantic Ocean from South America to Africa in the case of the blue whale!