Whether it's a new puppy, another pet or even a newborn baby, chances are at some point in your dog's life they'll have to deal with a new family member.
And while many canines will respond positively to the new addition, in some cases you may find that your pooch gets an attack of the green-eyed monster.
While jealousy is a perfectly natural emotion in canines, it can make your pooch reclusive, moody or even aggressive, so it's a good idea to tackle the problem head on.
The first step is to recognise the signs that your pooch is feeling jealous and understand what may be causing their disruptive behaviour.
Writing for the Dog Daily, animal expert Scott Rose says: "Like a spurned lover, your dog will have a hard time containing itself if it feels jealous. Sulking, snarling, growling, fighting and sluggishness can be symptoms of jealousy."
Rather than reacting by punishing your jealous pooch, it's usually a better idea to try and see the situation from your dog's perspective and try to spend as much time as possible with your pup during the transitional period.
It usually helps to maintain your dog's daily routine to give them a sense of consistency and ensure that they don't feel threatened by a new family member. This means feeding them their premium dog food at the same time of day, keeping up with regular walks and also playing with your pooch according to your old schedule.
However, unfriendly or aggressive behaviour should not be tolerated as it can spiral and cause more serious problems, so Scott suggests reinforcing some simple training to deal with the issue of canine jealousy.
"You must remain the leader, so gently show your dog who is boss by verbally scolding negative behaviour as soon as it starts," he advises. "At the same time, reward positive behaviour with sweet talk, head rubs and treats, especially if your dog makes an effort to socialise with your new pack member."
Written by: Hannah