It may be hormonal- or you may have a situation where the older female does not like the puppy.
The situation can escalate where the agressor becomes sneaky and will go to great lenghts to get at the puppy.
I just had a situation with a agrresive dog ( a male) he was loving to me- but always a bit reserved- like he was afraid to completely open up his heart- but became more and more aggresive as he became older. He started to show this unpleasant side of his nature late last winter early spring. He had to be seperated from everyone. He did not like other males- females -kittens or cats. The final draw was when he snapped at a small child. I knew I had a accident waiting to happen on my hands. The accident did happen some months later and another dog was hurt.
It is very upsetting when a situation like this happens- you just don't want to think of that dog that you love can have that nasty side to his or her nature.
Why it happens I don't know. This male was a adult when he came to live with me and parts of his personality had already been imprinted into his nature.
Would he have done well placed in a home with no other pets I do not know-
is this part of his nature that he could pass on to any offspring I do not know.
I would watch your female once her litter is born to make sure that she does not show any of those tendancies towards her babies. I hope that it is just hormones and her being out of sorts. |