How Cats Purr

Did you know that cats have no special apparatus in their body that makes them purr, Purring involves the rapid movement of the muscles of the larynx (voice box), combined with movement of the diaphragm (the muscle at the base of the chest cavity). These muscles move approximately 20 to 30 times a second when cats purr. 

As the cat breathes, air comes in contact with the vibrating muscles and that is what produces the purr sound. Each cat's purr is unique with some being very high pitched and others sounding like a low rumble. Some purrs are faint and some are extraordinary loud. How does your cat purr?

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