“No one has ever been able to discover how they [cats] make this subtle sound, and what is more, no one ever will. It is a secret that has endured from the very beginning of the time of cats and will never be revealed.” AbleSoundSecretCatSubtlePurring Book:The silent miaow: a manual for kittens, strays, and homeless cats Source: The silent miaow: a manual for kittens, strays, and homeless cats
