I have two 12 year old cats. The first, Lils, is a feral rescue who has been a nervous wreck since day one. The second, Boo, is a small grey shorthair who is tough as nails and afraid of almost nothing. We got them as kittens and we also had a Maine **** who ballooned to 35 pounds. He was about 6 months older (and much bigger than the girls).