Introducing dogs and living together
Your dog is not required to like other dogs. That includes the puppy you are really excited to bring home!
Indy had not always been accepting of new dogs, so we took our time introducing Inertia to her. We hoped they would enjoy each other’s company, and the possibility of years together was worth taking our time for.
The same approach has mattered with very different dogs. When Veronica was unsure of Inertia, Bree and I gave Veronica room and asked Inertia to give her space. Later, Shade was the first foster puppy Veronica had experienced since coming to us herself, and she was pretty thrown off. Inertia’s experience with our foster dogs did not mean Veronica would feel the same way.
Before they share the space
Plan for each dog to eat, rest and spend time with you without the other dog approaching. Set up secure gates or separate rooms before the new dog arrives. Think about narrow doorways, favorite resting places, food, chews and toys, and where each dog can go when they need a break.
If your current dog is frightened of other dogs, has injured another animal, or you cannot safely keep them apart, get individual help before arranging direct contact. Your veterinarian and a qualified reward-based behavior professional can help you decide what is realistic for these particular dogs. Adding another dog is not a treatment for a problem the first dog is already having.
Let them get to know each other gradually
With Indy and Inertia, we allowed them to be near each other without giving them direct access right away. We rotated their time with us so they both got plenty of attention and could get to know each other from a distance.
For your dogs, start with enough space and a secure setup that neither has to defend themselves or keep trying to escape. If seeing each other through a gate is already upsetting, use more distance or a closed door. Being on opposite sides of a barrier does not automatically mean they feel comfortable.
Keep early sessions brief and give both dogs a way to leave. Watch what happens when one moves closer, turns away or wants to rest. If either dog becomes tense, fixates, hides or keeps trying to get away, separate them calmly and make the next setup easier. You do not need to wait for a fight to decide it is too much.
Indy wore a basket muzzle that she had already been conditioned to feel comfortable wearing during her first play session with Inertia. That was one part of our plan for those dogs, not a shortcut to making an introduction safe. A muzzle does not make forced contact fair, and dogs can still injure or frighten each other while wearing one. If you need that extra protection, get help with the introduction and with teaching comfortable muzzle use beforehand.
Help the older dog take a break
Indy and Inertia came to love playing together. If Inertia had her way, they would have played all day! Indy preferred shorter bursts.
We gave Indy a place to get away and taught Inertia how to leave her alone when we asked. At that time, Indy could get onto the couch while Inertia was not yet allowed on the furniture. That arrangement gave Indy a break from the puppy.
Your dogs may need a different setup. A comfortable resting space behind a gate may work better than expecting an older dog to jump away from a puppy. The point is to make rest possible and help the puppy do something else, rather than leave the resident dog to fend them off all day.
Practice calling your puppy away and rewarding them before an interaction gets difficult. Give them their own activity, attention or rest. Supervise shared time, and separate the dogs safely when you cannot supervise. Keep meals and high-value chews separate so neither dog has to compete.
Listen when a dog asks for space
In one interaction between Veronica and Wallace, a small growl told me Veronica was uncomfortable. Instead of punishing or ignoring it, I redirected Wallace without touching him, using the communication we had already built.
Helping Veronica get the space she was asking for mattered for her, too. I wanted her to be able to trust that we would listen.
A growl is information, not a reason to punish your dog. It can also be a warning that an interaction is becoming unsafe. Create space. Do not keep pushing the dogs together or wait for one to “teach the other a lesson.” If you see repeated tension, chasing that one dog cannot escape, snapping or fighting, stop direct interactions and get individual help.
If a dog’s behavior changes suddenly or pain may be involved, start with your veterinarian. The American College of Veterinary Behaviorists advises preventing situations where aggression is a concern while getting qualified help, including using doors and gates to separate animals.
They do not all have to become playmates
Indy did not really enjoy playing with my past Border Collies, and we respected that. I was happy that she liked playing with Inertia, most of the time!
Every dog is different. Some relationships include lots of play. Others need more space, management or lasting separation. Take the time to understand the dogs in front of you, and advocate for either one when they are uncomfortable.
You can see these relationships develop in the Inertia, Veronica, Shade and Wallace series.