On a recent visit to Hamerton Zoo on a quiet day I watched a cheetah which was slowly walking up and down the fence of its compound - and it was purring! I knew that they could purr but could think of no reason why this one should - it was not resting or being petted - just being admired! Can anyone tell me more? I also once heard a cheetah meow as it was about to be fed a small treat. My reaction to the sound was the same as the one I had when many years ago in my youth I worked in a bar. An enormous man, built like a bull, came to the counter - and then requested a gin and tonic in the tiniest, campest voice I have ever heard!