Cheetahs can purr. That doesn't preclude them also roaring or growling. The posters in the thread there seem to think humans can only speak in a perfect monotone, or else are supremely privileged in being the only species able to vocalize in different tones.
Cheetahs can purr. That doesn't preclude them also roaring or growling. The posters in the thread there seem to think humans can only speak in a perfect monotone, or else are supremely privileged in being the only species able to vocalize in different tones.