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Thursday, June 13, 2024

How do cats purr?

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Cat Image Gallery Why does this kitty purr? See more pictures of cats.Cat Image Gallery Why does this kitty purr? See more pictures of cats.Kathi Lamm/Getty Images

Humans seem to be fascinated by animals who can do things that we cannot. For example, HowStuffWorks has answers to questions about camel humps, Hawk vision, night vision, fish gills and so on.

And so it is with cats purring. We cannot purr, so we are interested in how cats can do it. It turns out that domestic cats, some wild cats like pumas and mountain lions (in general, any big cat that cannot roar) and even raccoons are all able to purr. Humans happen to smile and laugh when they are happy, and dogs wag their tails. So it is not unusual for an animal to have a physical reaction to happiness. Cats show happiness by purring. They may also purr when startled or upset.

It turns out that cats have special wiring! The wiring travels from the brain to the muscles in the voice box, and this wiring is able to vibrate the muscles so that they act as a valve for air flowing past the voice box. The muscles work both during inhalation and exhalation, which creates the impression that cats can purr continuously. The air passes through the valve, which opens and closes rapidly to create the purring sound.

To learn more about cats, check out the links on the next page.

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Lots More Information

Related Articles

  • Cat Care Tips
  • How does catnip work?
  • Why do cats have whiskers?

More Great Links

  • Scientific American: Why do cats purr?
  • Why do cats purr?
  • Solving The Cat’s Purr Mystery using Accelerometers

 

 

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