The Lion Roar is the Voice and Sound of Africa, Wayne Staab, PhD

The lion roar is the loudest of all the big cats with their roar reaching up to 114 dB SPL. Lions are active primarily at night, and most roaring occurs during nocturnal hours. Spectrographic analysis of lion roar reveals both low frequency components with a fundamental frequency around 180-194 Hz and a higher frequency component around 4000 Hz.

The Lion Roar is the Voice and Sound of Africa, Wayne Staab, PhD

The Sounds of Africa: What Elephants Hear

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