How Cats Communicate Through Purring

One of the quintessential sounds a cat makes is the purr. Purring is a deep throated vocalization created by activating the muscles of the larynx and the diaphragm.

Purring happens both upon inhale and exhale. Other sounds that a cat makes like meowing, hissing, trilling, or chirruping only happen on exhale.

Purring is more than just a vibrating sounds, a cat’s purr is a way of communicating.

Purring in Kittens

Kittens learn to purr a few days after birth and will purr and knead when nursing. A kitten’s purr also helps the mother locate her offspring.

Cats Purr to Show Happiness

When cats reach adulthood, they will continue to purr. Purring, as many people know it, can be a sign of happiness.

A gray tabby and a black kitten cuddling.
Cats will often purr when being groomed or are close to another cat. Photo: Caitlin Dempsey.

Cats will purr when they are being pet or groomed. Cats will purr when in close contact with another cat or even when playing.

Cats Purr to Demand Food

Cats will also purr to tell their humans that they need food. If you’ve ever been woken up by a hungry, purring cat, you will have probably experienced this type of purr.

Researchers found that the “urgent purr” that a cat produces when they are trying to get food from a human emits a high pitch sound embedded in the purr that is similar in pitch to a cry or meow.

These urgent purrs (or solicitation purrs) produce a sound that is less pleasant than the purr of a contented cat.

Cats Purr to Self Comfort

When a cat is in distress or in pain, the cat may purr. The act of purring is believed to help comfort the cat.

Females cats will purr while in labor which is believed to be a form of self-relaxation to manage the pain.

Researchers also hypothesize that purring may also help cats to heal.

Researchers measured the frequencies at which the domestic cat and certain breeds of wild cats purr (von Muggenthaler, 2001). The study found that felines including domestic cats, servals, ocelots, and pumas purr at frequencies that promote bone growth/fracture healing. The harmonic of these cats also was a levels therapeutic for pain, edema, wounds, and dyspnea.

Purring in Wild Cats

Some species of wild cats can purr.

When it comes to wild cats, they can either roar or they can purr. The cat family, Felidae, is divided into the “purring cats” (Felinae) and “roaring cats” (Pantherinae).

Therefore, large cats roar but can’t purr. These include the lion, tiger, leopard and jaguar. The one exception to the subfamily Pantherinae is the snow leopard which purrs and can’t roar.

Along with the domestic cat in the subfamily Felinae, wild cats like the cheetah, ocelot, margay, serval, and lynx can purr. Cougars (also known as the mountain lion) are the largest species of cat that can purr.

A mountain lion walking on rocks.
Mountain lions are the biggest cats that can purr. Photo: NPS, public domain.

References

McComb, K., Taylor, A. M., Wilson, C., & Charlton, B. D. (2009). The cry embedded within the purr. Current Biology19(13), R507-R508. https://doi.org/10.1016/j.cub.2009.05.033

Remmers, J. E., & Gautier, H. (1972). Neural and mechanical mechanisms of feline purring. Respiration physiology16(3), 351-361. https://doi.org/10.1016/0034-5687(72)90064-3

von Muggenthaler, E. (2001). The felid purr: A healing mechanism?. The Journal of the Acoustical Society of America110(5), 2666-2666. https://doi.org/10.1121/1.4777098

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