Ok don't laugh at me but I have to ask........does a pup know who their brothers and sisters are? I don't mean when they are born, I mean if they were away from each other for a while?
It's common for one dog to establish dominance and maybe the sister is an alpha type. That's just the way dogs are and the less dominant one usually accepts it WAY faster than his/her owners do.The reason why I am asking is because I have been putting my pup with her sister. Her sister lives in a different house and hasn't seen her sister in 6 months, anyway the first couple of times they got along great but recently my pups sister has been getting a bit aggressive with my pup? When my pup lays by her the other dog will growl or show her teeth? I also want to add that neither of them are spayed so this may have something to do with it? Oh and they are 6 months old.