However, there are some variations in how cats purr:
* Frequency: Some cats purr at a lower frequency, while others purr higher. This can depend on the cat's size and breed.
* Volume: The loudness of a cat's purr can also vary. Some cats have very quiet purrs, while others purr so loud you can hear them from across the room.
* Duration: Cats can purr for short periods or for long stretches of time.
While all domestic cats can purr, some wild cat species, like lions and tigers, can also purr. However, this is not as common as it is in domestic cats.