Our pit bull mix is starting to attack our other dog; what can we do about it?
We have a young boxer, dalmation, pit bull mix (4 yrs) female named Coco. She was abandoned by her original owners as a pup. She was abused. We have 3 other adopted dogs, one of which we have had for 2 years who's name is Sunni. She is a hound mix, 10+ years old with arthritis in her leg and spine. She is calm, moves slowly, takes 2 kinds of pain medicine a day, never barks - and for some reason Coco attacked her. We bought her a special leather and wire muzzle that she can drink with and she has a large dog crate in the living area for eating and sleeping where the muzzle can come off. Recently she has jumped Sunni and gone through all the facial motions of attacking which are unsuccessful because of the muzzle. It is very frightening. We love all our rescue animals so much and are heartsick with what Coco is doing. Can someone help us solve our problem. 3 years ago, Coco jumped on me for the 100th time and hit me in the wrong place and I found a cyst when I put my hand over where she had hit me. It was breast cancer and the doc told me she had saved my life.