So, we have four dogs. The eldest is 4 yrs old and female. We got puppies, one of each, a few months ago and now the older female has started being aggressive with the female puppy, 7 months old. All are German Shepherds.
Recent examples, I caught the puppy's paw in a door and she yelped like crazy. Older dog immediately gets right in the puppy's face and starts snarling and snapping. Then all dogs were chained up, only for a few minutes, I let the older female off first and she did the same again with the puppy because she was still on the chain.
She's not aggressive with us or with the two male dogs. Am I reading too much into this or could there be something going on that I need to tackle?. Both are spayed.