We have just had a strange thing happen on our ranch. Someone dumped 2 young dogs there. They would not even come near us but we put out food and water bowls for them. After about 2 months one of the dogs disappeared. The remaining dog has taken up with a bull out in the pasture and stays very close to him all the time. The dog still comes up to eat when we are not there and goes back to the bull.
We laughed ourselfs silly watching a horse follow 2 ducks around....when they left the arena the horse would wait for them to come back....It was an outdoor arena. The horse was stabled at night, but the barn cats kept her company then....
The other horse had been her stable mate for years. She sure was happy when the other horse came back home...