We have a 10 year old Rhodesian Ridgeback mix and a 5 year old Rhodesian Ridgeback. We just adopted a 6 year old German Shepherd/Rott mix. All dogs have seemingly gotten along fine most of the time, but there have been three fights in 3 months with our oldest (male) and the new addition (female) . It is my opinion that there is a dominance issue and also the new gal has not been socialized ever. She was in a back yard and was clearly hit in her face often.
The fights are serious. My husband got knicked last night when we pulled them apart.
I can see that the new female is possessive about toys. I am not sure the best way to handle this. My older dog has been possesive about toys also, but he will let her have a toy if she tries to get it. But he is also the one who starts the fights. She just doesn't back down.
We do all the standard things, they get walked every day, they know we are the pack leaders, they are obedient dogs who don't get away with too much, but obviously something has gone wrong. How do I fix it?