Why and how cats purr

How cats purr

This is the simplest question, with the answer to which scientists more or less figured out. It is assumedWhy and how do cats purrthat the purring sound is produced by the internal muscles of the larynx. They cause the glottis to contract and expand rhythmically. Therefore, on inhalation and exhalation, when the air passes through the larynx, it vibrates in the frequency rangeWhy do cats purr from 25 to 150 Hz - this is how a quiet rhythmic "mrrr" appears.

But why the muscles of the larynx begin to work in a purr mode and what the cat wants to say with its rumbling is not entirely clear.

Why do cats purr

The most common version is because they like it. Indeed, cats often purr when they are stroked - that is, when the owner demonstrates tenderness, care, willingness to warm and protect animal.

It could be an evolutionary central nervous system response that helps cats survive. So, it is known

Why and how do cats purrthat kittens begin to purr at the age of a couple of days. This sound notifies the mother-cat that everything is in order with the baby, it is there, it is warm and ready to eat. The cat relaxes, lies down more comfortably and starts feeding.

Many animals continue to purr even as adults - when they find themselves in a "childish" situation of the master's care or are looking forward to a quick lunch. But the purr does not always mean that the pet is pleased with the comfort and safety.

Here are some common situations in which the nervous system cats can trigger the purr mechanism, that is, make the muscles of the larynx contract and expand rhythmically.

The cat communicates

Purring is a form of feline communication. It concerns not only the communication of the tailed mother with her cubs. Quite often cats purr when they lick each other or are engaged in a common cause.

This is a kind of signal “I like what you are doing” or “Let's do it together”. Communication between felines is very little researched. It clearly deserves more study.

Sam Watson, Research Fellow at the Royal Society for the Protection of Animals (RSPCA), Commentary for BBC Future

The cat explores an unfamiliar place

In this case, purring is a way to attract attention to yourself, to inform those left behind: "I am here, I am in touch." And to those who live in this place - "I am calm, friendly and not dangerous, do not touch me."

The cat is nervous

OftenWhy do cats purr cats purr during veterinarian visits or when they just ran away from the dog. Either when they expect an attack or are preparing to attack themselves. In general, purring is directly related to the stress experienced.

The cat tries to heal itself

According to some reportsThe Felid Purr: A healing mechanism?, sound vibrations at the frequency of the cat's "mur" make bones denser, strengthen muscles and ligaments, and accelerate tissue healing in various injuries. This information is backed up by statistics: cats do recover from fractures and surgeries faster and easier than, say, dogs.

Scientists cannot yet explain why this is happening.

According to one versionThe Felid Purr: A healing mechanism?Purr is a mechanism that allows the tailed beasts to keep fit.

Indeed, cats are quite lazy, sleep a lot and generally do not exercise. However, at the same time they retain their agility, quick reaction, strong muscles. And purring in this process can play an important role.

Do not envy, but rather scratch cat behind the ear. Perhaps his grateful rumbling will help you too. There are studies[Biomechanical Stimulation Therapy as Physical Treatment of Arthrogenic Venous Insufficiency], proving that sound vibrations at frequencies of 18–35 Hz restore the human body as well.