My older dog is aggressive to my new puppy. How can I make them get along?

it is important to remember that Chico was there first, and is used to a certain level of attention from you. This newcomer has no expectations, so be sure to dote on Chico as much as ever so he feels secure. Then, gradually, you can increase the amount of time you give the new guy (without taking anything away from Chico). The second issue you are facing is that the dogs have to sort out, for themselves, who's who at the zoo. In other words, they may have one order of inportance to you, but they need to determine amongst themselves who's top dog, who's in the middle, and who's on the bottom. There may be a bit of snapping and barking going on, but as long as there are no injuries or serious fighting, leave them to it. Once they get it squared away, everyone will know his place in the pecking order and will (usually) behave accordingly.

If your dog does not get along with other dogs it was probably a very bad idea (and a very stressful one) to bring a new puppy into the house. A new puppy can also be hard around a newborn as they aren't yet sure how to interact with each other. You can try to continue to get the two to get along by starting with limited introductions that are supervised, however if a fight breaks out the interaction should be stopped immediately and started again later. Never leave the two unsupervised together as even a good play sessions can cause accidental injury. You can also use baby gates as a way for the two to "meet" each other without being able to physically be together. If fights are continually breaking out, talking to a trainer or behaviorist that can observe within the home is best.

Puppies can sometimes be A LOT for senior dogs and it can take some time for them to get use to one another. If there were any food, treats, toys or special people near by Buddy could have just been acting protective over these. Also, with Buddy being older, if they puppy is always playing, jumping on him, or nipping at him, he may have been just trying to tell the puppy to leave him alone or trying to set some boundaries. Also, if he is arthritic and he knows the puppy jumping on him hurts, he could have reacted to prevent this. I would continue to keep them separate until you know they can be left alone together. I would definitely feed them separately as well. I would be sure you are still spending plenty of alone time with Buddy as he may be feeling frustrated that his home life has changed with the new addition. I would continue to have short but frequent times of them being together. You could also start Buddy on an anti-anxiety chew like composure or composure pro and get him a calming collar like sentry or adaptil. If these don't help, talk to your vet about anti-anxiety medicine like fluoxetine or trazadone. I hope this helps!

I’m sorry she’s having a hard time with the puppy!! Sometimes puppies are a lot for an older dog to take. I would recommend that you get together with a trainer for some sessions for the puppy and for your older dog... this will likely be well worth your time and money. Give that a try before de-homing the pup. It can take months for acceptance to occur, and they may never be best friends but may be able to be compatible roommates with time. Give your older dog some “breaks”’from the puppy. Put the puppy in a kennel for a while, or better yet send the puppy with a friend, roommate or family member to get some good playtime in, (hopefully for the puppy to come home tired!) while you and the older dog have some one on one time—cuddle with her on the couch, play with her or take her for a walk just the two of you. It may also help to make a new routine—leave the puppy home in a kennel and take the older dog for short walk once or twice a day, even just 10 minutes will help... and do it at the same time each day... if she knows she will dependably get some “alone” time with you, that may ease her irritability as well. I really hope that information helps you ... Good luck with them both! Thanks for asking Petco Pet Education Center, formerly Petcoach!

Ypur puppy is probably very lively and wants to play with your old dog. Your old dog probably does not feel like playing and does not want to bother with the youngster, so the only way to deal with a wild youngster (for him) is to tell the little on in no uncertain terms, that he wants to be left alone. So I would keep the puppy very busy, give it lots of play and exercise, so it is tired afterwards and does not need or want to entice the old dog to play. Make sure that you do not leave the puppy alone with the older dog, as there is a serious possibility of the old dog getting fed up and biting the little one. Best keep them separated. Your old dog will probably calm down and ignore the young one as soon as the young one stops pestering it for play and attention.

A few thoughts here: first, esteemed PhD level animal biologist Ray Coppinger debunked the "alpha" concept when it comes to dogs several decades ago, but the idea seems to persist for some reason. Second: you should always introduce a new dog to existing members of your canine household on neutral ground. Bringing a "stranger" into your home invites territorial behavior. You don't say how long you've had the newest dog. If it is a short time, they may be working out dominance issues and, as long as no one is getting hurt, this can be okay. Sometimes, there is more noise and posturing than anything really serious going on. Not being there, I can't know for sure. If you are really concerned, or if blood has been drawn, I would ask your vet for a recommendation to a canine behaviorist (NOT the same as a dog trainer!) for help. Good luck with this!

This behavior is likely so-called dominance behavior. You will need to find out who is the boss and the dominant dog (boss) should always get fed first, be petted first and addressed first. If you start preferring the Number 2 dog over the dominant dog, then the dominant dog will try to punish the Number 2 dog. You need to let the two dogs work it out themselves, and not feel sorry for the underdog. Once the ranking is clear the biting and aggression should stop.