Behaviour is affected by the species, the breed, and ultimately, the individual dog. For example, trying to steal food from the table is a scavenger trait related to the species, running a lot or needing to hold something in the mouth may be specific to hounds or retrievers, and being scared of thunder or preferring to sleep a certain way is up to the individual dog. Namratha Rao, one of the canine behaviourists working with ThePack, splits factors that influence dog behaviours into two categories — Nature and Nurture.
Nature
Nature is what the dog is born with, and it involves genetics and breed. A puppy is born with genes from the mother and father. Genes affect attributes such as coat colour, height, predisposition to diseases, etc. They can also be a marker for aggression and behavioural issues (one of my pet peeves with unregulated and unscientific backyard breeding, but I shall harp on that later).
We broadly tend to overlook genetics and pin aggression on the breed. While the dog’s breed isn’t necessarily a marker for aggressiveness, it can be beneficial in understanding what the dog needs. Specific breeds were created for certain tasks, and your dog will be better adjusted if the inherent breed needs are met. The most common examples of this are our dear Beagles. Confined to apartments and exercised infrequently, they often display behavioural issues because their humans never bothered to look beyond their size and understand that they’re hunting dogs before bringing them home.
Nurture
Nurture involves everything that comes after the dog’s birth. Early separation from the mother can result in the puppy missing out on crucial social lessons. A lack of socialisation (explained below) can result in an underconfident dog. Traumatic events such as accidents or abuse can leave a lasting impact on the dog’s behaviour. Health issues like arthritis and pain, or those that deplete your dog’s energy may lead to unmotivated and sluggish dogs. On that note, Thyroid imbalance is co-related to aggression, as are gut issues. Even something as insignificant as your house’s slippery floors can lead to problems that present as behavioural concerns.
Socialisation
While all of the ‘Nurture’ factors are important to address, the most crucial bit of nurturing (and perhaps the most misunderstood and overlooked too) is Socialisation. Namratha describes socialisation as a critical period of development — learnings in this period last a lifetime. The socialisation window is up to 4 months of age, though some sources say it is till 6 months. The process involves exposing your dog to various sights, sounds, smells, textures, people, places, etc. Fundamentally, socialisation requires you to use every opportunity for your dog to be social and adapt to your life.
Dogs that have been socialised well tend to be better-adjusted adults and display fewer behavioural issues. However, not every dog comes home at 2 months old. Today, more people are adopting dogs than before, so your dog may arrive home at an older age, and they may or may not have been socialised well enough. While ‘Socialisation’ may not be possible at that age, counter-conditioning can be done to ensure you have a well-adjusted dog. This will depend upon the individual dog and the family the dog goes into. If your dog has behavioural issues, you can either decide to let them be (if they are insignificant) or fix them. Fixing the issue will depend upon how long it has persisted and how old and adaptable your dog is. Behaviours practised for a long time will take time to undo. It is advisable to avoid stimuli that elicit unwanted behaviour while training your dog to undo the behaviour.