Why Do Cats Purr? – 8 pics

Everyone knows that cats purr, but how do they do it? Purring seems to be caused by the cat's vocal chords being drawn together and apart so quickly that it creates a vibration in the larynx or voice box. This vibration is strong enough to be transferred throughout the cat's body. Other mammals, including humans, don't have the muscles to move the vocal chords that quickly.

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