What sort of cats?
Cat people?
Jungle cats?
those annoying ones that your neighbour owns and lets out at night so it can sit out side your window and meow all night, so you bonk it on the head and turn it into a pie and give it to your neighbour as a show of good will? If they ask it's chicken
Or those cute little cuddly ones they have at the pet store?
Cos I have some, I just can't credit them all. Is that ok? Some do have the authors name on them still. it ain't much but some of it might be usefull.