PH
Cats are known for many things, but one of their most well-known characteristics is the purr. If one has ever had a cat - or even just encountered one that belonged to someone else - then one is likely to have heard this sound, the cute rumble which seems, according to the prevailing wisdom, to signify the little ball of fur’s contentment. However, cats are also known to purr for a number of other reasons, and some even do it when they are frightened. What’s more, not all felines can do it, with some of the big cats such as lions and tigers unable to do so.
Though their motivations remain fuzzy, most scientists have come to believe cats engage in this behavior as a soothing mechanism. What’s more, there is also evidence they may do it in order to encourage bone growth, since the frequency at which they purr encourages the regrowth of tissue.
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