Cavalier Puppy is mean to her sister
I have two cavalier king charles spaniel puppies whom are sisters. They are 6 months of age. Most recently one of them (Mili) has become mean to the other (Moli). This happens everytime during their mealtime and when Moli has something in her mouth (aka bone) Mili becomes aggresive and starts grabbing her ear. This as gotten worse in the last few days. I am really concerned that she will always be like this. I don't know what to do. She fine during other times and isn't mean to other two cav bitches we have.