I've always been drawn to Roman Catholic saints who had some sort of connection with animals. Roman Catholic devotion to St. Francis, of course, is very popular. But, I always liked the story of Don Bosco's dog, the big gray mastiff dog who showed up to save him from being harmed by robbers. Then, there's a legend of a lion who became devoted to St. Jerome. And, the legend that Roman Catholic saint Rocco (or Svetyj Rok) who, while dying from the plague after tending to sick people, had a dog come and bring him food.
I feel very blessed to have my Great Pyrenees dog who has protected both me and my mother on several occasions. As I move to Orthodoxy, I would like to reflect on the Orthodox saints that had a special connection with animals, but I don't know who they are.