According to a popular belief, people think that cats purr when they are happy and satisfied.
But did you know that cats purr in other situations also?
Imagine a cat falls from a height and injures her bone. In such a situation also, the cat starts purring to heal her bones.It is found that exposure to frequencies between 20 Hertz and 50 Hertz builds bone density and the frequency of a cat’s purr falls within the range of 25 Hertz to 150 Hertz. So, it is possible that a cat who has injured her bone might be purring to build bone density and thus, promote healing.
In addition to this, cats also purr when they are stressed or feeling very hungry.
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