My cat's purr is inaudible, but I can feel the vibration on his neck. Is something wrong with him? - Quora
Ricky Gervais - A cat's purr vibrates at a frequency of 25 to 150 hertz, which is the same frequency at which muscles and bones repair themselves. So, after a workout, let
![Why cats purr is a surprisingly long-standing mystery. Now we're one step closer to solving it. | Live Science Why cats purr is a surprisingly long-standing mystery. Now we're one step closer to solving it. | Live Science](https://cdn.mos.cms.futurecdn.net/RRsyXVqAbpFm2ReAKpnmWe-1200-80.jpg)