Why do cats purr? Yes it does mean they’re happy but they also purr when they’re in pain or upset. Our best guess is that they’re saying to us ” please settle with me” because they either want to share their good mood with you or they are looking to you to comfort them. It could be the cat version of us crying or laughing or even humming to make ourselves better or distract us from something

Scientists have noticed that one of a pair of cats will curl up beside its injured buddy to what scientists initially assumed was to soothe the injured one as it’s almost universally perceived as a pleasant sound. However cats purr in a sound range that also stimulates tissue regeneration. It could just be a coincidence but we all know that regular exercising especially high impact is good for bone density because we are putting pressure on the bones and they respond by becoming stronger. 

Cats as we all know spend a lot of time sitting or lying around but cats living in the wild still need their bones to stay strong for the explosive bursts of activity required to catch their prey (unless of course they are lucky enough to find themselves in a Queenstown Cat Rescue colony) and purring may be an evolutionary development that keeps bones strong. Clever cats!