Our animals that are familiars are infused with a demon and they help protect us and guide us, like a dog acting out during a ritual could be foresight to an attack. Our guardians, in my experience, can look out for or protect important people or animals in our lives if we ask. I have also seen a trickle down effect with protection. Guardian protects you, you protect yourself, the animals are around and absorb some of that energy, the more we are protected the better we protect them. It works like that with kids I’ve seen, too. I am not sure if animals have a specific guardian, but there are gods and deities that rule over certain species like Kek and frogs.