Lately my two female dogs have been fighting. From what I can tell, my 14 month old aussie, Zelda, is the one who starts it. It can happen when Zelda is playing frisbee & the other dog, Stella, is outside while she is trying to play. It has also happened when Zelda tried to take Stella's food by attacking her. It just happened tonight when Stella tried to enter a room that Zelda was in. I have a very hard time breaking them up. This time it appears Stella has a cut that is bleeding under her eye and between her eyes. It started happening over the past month or so. Can anyone help me with this? I've never had it happen before and I'm afraid one of them might seriously injure each other, especially since I can't really break them up. Thanks!