I personally imagine that Auri can growl like crocodiles when they’re mad, including the smol She Ras so many a poor ignorant Westerner has the shit scared out of them when a cute little lizard girl suddenly growls VERY MENACINGLY.

And in a similar vein, they can sorta purr with that noise, even if it’s not “true purring” like little cats and Miqos. More like a big cat’s sawing, but still.