killed a dozen of rats and 4 cat's! Just yesterday I learned that my dog Tyra killed another cat, an adult cat! Again!, I don't know why she do this but I think it is all on instinct. The 1st time she killed a cat was I think years ago. So cat's beware! I don't want you to fall victim to my dog. to all the cat's that my dog killed it's not her fault, she's just acting on instinct to the rats that's been lurking outside our house your next! stay out or die! :)