Unlike kittens, The NOAH Center does not encourage or allow the adoption of two puppies to the same family at the same time. Puppies have very specific training needs and require individualized, one-on-one training. Puppies are often an incredible amount of work, and two puppies are even more challenging.
Without that undivided attention during initial socialization and training, puppies can often develop “littermate syndrome”, which often shows in aggression towards one another including resource guarding behavior, protecting items including food, toys, beds, other household objects, and people. This does not occur with all puppies adopted together, but it is impossible to predict what can trigger the behavior in some puppies versus others.