My Bengal cat, Satinshadow, was hard to keep alive because his liver didn't manufacture vitamin b6 which, especially in hybrid cats with wild cat blood in them, is required in large amounts for all their tissues. I kept him alive with daily supplementation of b6 and its co-factors as well as other vitamins and minerals for seventeen years. When I had no one to help with his round the clock care, I drove with him and carried him in a backpack everywhere I went. Because Asian Leopard cats mimic bird sounds, he genetically inherited the trait to the extent of mimicking the sounds in his environment. His greatest achievement was learning to mimic my saying "that darn cat" with terrifying clear enunciation! I would say "darn cat" to him when he would start his loud wild cat crooning when I was afraid my apartment neighbors might object. Sometimes I would go after him to shut him in the closet for a few minutes when he would start yowling, but then instead he would see me coming and repeat "darn cat" for me and then go quiet. Satinshadow of Brightleopard was a neutered male but raised litters of orphaned kittens I was bottle feeding, and looked after them like a mother cat would, even allowing them to nurse on his stomach fur. He was a great animal soul....