:confused: We are the proud parents of 3 boxers. One of our females just had a litter of pups(9-12-02), all very healthy and adorable. However, now she seems to be getting aggressive towards the other two, so we have been keeping them separated. They used to be best friends, and lay next to each other in the house, but now every time she sees one of them she greets them with hackles raised. She is still very good with us and the skin kids but I'm wondering why she is acting this way towards the other dogs?