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RE: 오늘의 고양이

in #cat7 years ago

Researchers are unsure exactly how a cat purrs. Most veterinarians believe that a cat purrs by vibrating vocal folds deep in the throat. To do this, a muscle in the larynx opens and closes the air passage about 25 times per second.

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A cat's normal pulse is 140-240 beats per minute, with an average of 195.