Purr

Purr

File:Cat purring.jpg

A cat purring

Purr is a vocalization made by certain species of cats. It is a low, vibrating sound that is produced by the rapid movement of the muscles in the cat's larynx and diaphragm. Purring is commonly associated with contentment and relaxation in cats, although it can also be a sign of other emotions such as anxiety or pain.

Physiology

The exact mechanism behind purring is not fully understood, but it is believed to involve the rapid contraction and relaxation of the cat's laryngeal muscles. This causes the vocal cords to vibrate, producing the characteristic purring sound. The frequency of the purr can vary between cats, with some producing a higher-pitched purr than others.

Function

File:Cat purring on lap.jpg

A cat purring on a person's lap

Purring serves multiple functions for cats. It is commonly associated with contentment and relaxation, often occurring when a cat is being petted or cuddled. Purring can also be a form of communication, as cats may purr to signal their presence or to solicit attention from humans or other cats.

Furthermore, purring has been found to have potential healing properties. The vibrations produced during purring have been suggested to promote the healing of bones and tissues, as well as to reduce pain and inflammation. This may explain why cats often purr when they are injured or unwell.

Cultural Significance

Purring has long been a subject of fascination and admiration among cat lovers. It is often seen as a sign of a cat's contentment and affection towards its human companions. In many cultures, cats are considered to be symbols of comfort and companionship, and their purring is seen as a soothing and calming presence.

See Also

• Cat behavior
• Cat communication
• Cat anatomy