I think we often forget the fact that we human beings play a huge part in shaping animals the way they are today. Imagine if our ancestors had not domesticated the wild dogs (not even for sentimental reason but economic), would we have been able to have the loyal cutesie loving pets today? In a sense, as “messed up” as we might be, we are also the ones that bring out the love in animals. Not that they were unfeeling before, but we, to some extent, have humanized them. By extricating the dog/cat/etc from the wild and letting them live in OUR home, we have infected them with our human behavior, our ways of interacting and loving. We have enabled animals to trust and be unconditionally loyal.