El purr The purr of cats is one of the most distinctive and enigmatic sounds in the animal kingdom. For cat lovers, the soft hum they make is reassuring and is often associated with their happiness and well-being. However, there is an astonishing complexity to the purr that makes it much more than just an expression of contentment. In this article, we will explore in depth why cats purr, how they do it, what it means to both them and us, and other fascinating aspects associated with this curious behavior.
What is purring and how do cats do it?
El purr Purring is a continuous, rhythmic sound that cats make. Although science has not yet reached a definitive conclusion on how they produce it, it is believed that this sound is produced by the interaction between the muscles of the larynx and the diaphragm. When the cat inhales and exhales, these structures make the vocal cords vibrate, generating the characteristic purring sound that we love so much.
A recent study by Current Biology suggests that cats possess special pads of fatty tissue on their vocal cords that increase their density, allowing them to vibrate at very low frequencies, typical of purring. This mechanism is comparable to a passive aerodynamic system, similar to that of human snoring, which could explain why cats can purr for long periods without tiring.
Why do cats purr?
For years, purring has been associated with a cat's well-being, but this sound has multiple purposes beyond expressing happiness. Here we explore the main reasons why cats purr:
- Expression of well-being: It is common to hear cats purr when they are relaxed, being petted or resting. This type of purring is associated with contentment and comfort.
- Communication: Cats use purring to bond. Kittens, for example, purr shortly after birth so that their mother can locate and feed them. This behavior strengthens emotional bonds.
- Stress reduction: In situations of anxiety or fear, such as a visit to the vet, purring has a calming effect on both the cat and those around it.
- healing properties: Purring frequencies (between 25 and 150 Hz) are thought to have therapeutic benefits including stimulating bone growth and repairing damaged tissue. This self-therapeutic mechanism may explain why cats purr even when they are injured or sick.
Purring as a manipulation tool
An intriguing aspect of purring is the ability of cats to adapt their purring to the context. Researchers at the Sussex University They have discovered that cats develop a special type of purr, known as the “solicitation purr,” to get our attention. This purr is characterized by frequencies similar to a baby’s cry, which triggers an innate caregiving response in humans.
This behavior demonstrates the intelligence and social complexity of cats, who use this resource to get what they want, whether it be food, attention or affection.
Purring and its impact on human health
Purring not only benefits felines, but also people. Various studies have shown that contact with a purring cat can have therapeutic effects in humans, such as stress reduction, lower blood pressure and improved mood. In addition, it has been associated with a lower incidence of cardiovascular disease.
Do all cats purr the same?
Not all cats purr in the same way or with the same intensity. Factors such as personality, breed, and individual experiences influence how and when a cat decides to purr. For example, domestic cats tend to purr more than wild cats, which could be related to their close coexistence with humans.
Additionally, some big cats such as cheetahs and pumas can also purr, although tigers and lions make similar sounds only when exhaling and cannot maintain a constant purr like domestic cats.
Purring as a survival mechanism
From their first days of life, kittens learn to purr as a form of communication with their mother. This sound allows them to stay close to her and ensure that they receive food and protection. Purring can also serve as a self-relaxation mechanism in risky situations, helping them to stay calm in the face of threats.
Interpreting the language of purring
While purring is a versatile tool, it is not always easy to interpret its meaning. To better understand your cat, it is crucial to observe his body language and other associated behaviors. For example, a cat that purrs while rubbing against you or kneading with its paws is probably expressing affection. On the other hand, if the purring is accompanied by backed ears or a tense body, it could be a sign of discomfort or pain.
Purring and feline anatomy
From an anatomical point of view, purring is a fascinating process. The vibrations generated by the vocal cords stimulate the muscles and bones, strengthening their structures. This phenomenon is comparable to vibration therapies used in humans to improve bone density and relieve muscle pain.
Cats, with their ability to purr both while inhaling and exhaling, display a unique evolutionary adaptation that allows them to sustain this sound for long periods without apparent effort.
What can we learn from purring?
Purring is a reminder of the special connection cats have developed with humans over thousands of years of living together. This seemingly simple behavior is actually a complex mechanism of communication, relaxation, and healing that strengthens the bond between cats and their owners.
As science advances, we are discovering more about this wonderful sound and its impact on both cats and our own health and well-being.
The next time your cat purrs on your lap, take a moment to enjoy that moment of calm and connection, knowing that in his heart, you are an important part of his world.