One of the most important skills in understanding dogs is being able to distinguish between normal canine behaviour, behaviour that requires guidance or management, and behaviour that may indicate an underlying welfare, health or emotional concern.

Dogs are often judged according to human expectations rather than canine needs. Behaviours that are completely normal for dogs may be viewed as undesirable simply because they are inconvenient within a human environment.

For example:

• sniffing during a walk may be interpreted as a lack of obedience, despite being an essential sensory behaviour;
• chewing may be considered destructive, despite being a normal canine activity;
• barking may be viewed as problematic, despite being a primary communication method;
• digging may be labelled as naughty, despite being an inherited exploratory behaviour.

A key principle in canine behaviour is that a behaviour cannot be assessed without considering context.

The same behaviour may be:

• appropriate in one situation,
• concerning in another,
• a sign of a deeper issue depending on the individual dog.

Understanding behaviour requires consideration of:

• the dog’s age,
• genetics,
• health,
• environment,
• previous experiences,
• emotional state,
• learning history.

A welfare-focused approach does not ask whether a behaviour is simply “good” or “bad”. Instead, it asks:

Is this behaviour appropriate for the situation, and what information is the dog communicating?

Normal Canine Behaviour

Normal canine behaviours are behaviours that are expected based on a dog’s biology, evolutionary history and species-specific needs.

These behaviours occur because they serve important functions for the dog.

Normal behaviours may include:

• exploring,
• sniffing,
• chewing,
• digging,
• barking,
• playing,
• chasing,
• resting,
• seeking social interaction,
• investigating new environments.

The presence of these behaviours does not automatically indicate poor training or behavioural problems.

In many cases, behavioural concerns arise because normal behaviours occur in contexts where humans find them inconvenient.

For example, chewing is a normal behaviour. However, chewing furniture may become a concern because the dog has not been provided with appropriate outlets or because environmental needs have not been met.

The goal of responsible dog care is not to eliminate natural behaviours but to guide them into appropriate contexts.

Behaviour Must Be Considered in Context

Context is one of the most important factors when interpreting canine behaviour.

A behaviour that appears concerning in one situation may be completely appropriate in another.

For example:

A dog barking at the door may be demonstrating normal alert behaviour.

However, excessive barking that occurs continuously, causes distress or prevents normal functioning may indicate that further assessment is required.

Similarly:

A dog running and chasing during play may be normal.

A dog repeatedly chasing moving objects despite distress or inability to disengage may indicate a behavioural concern.

Understanding behaviour requires looking at:

• what happened before the behaviour,
• what happened after the behaviour,
• the dog’s emotional state,
• the environment,
• the individual dog.

Developmental Behaviour Changes

Dogs change throughout their lives, and behaviour should always be considered in relation to developmental stage.

Puppies

Puppies commonly display behaviours including:

• mouthing,
• chewing,
• exploring,
• short attention spans,
• increased curiosity,
• difficulty regulating excitement.

These behaviours are normal parts of development.

Puppies are learning about their environment and developing physical, emotional and social skills.

Appropriate support involves:

• supervision,
• redirection,
• teaching alternative behaviours,
• providing appropriate enrichment.

Adolescence

Adolescence is a developmental stage where many dogs experience significant behavioural changes.

During adolescence, dogs may show:

• increased independence,
• changes in responsiveness,
• increased exploration,
• emotional sensitivity,
• changes in social behaviour.

These changes are not necessarily signs that training has failed.

They reflect biological development and changing emotional regulation.

Adult Dogs

Adult dogs often develop more predictable behavioural patterns, although learning continues throughout life.

Changes in adult behaviour should always be considered carefully because sudden changes may indicate:

• health problems,
• stress,
• environmental changes,
• altered relationships,
• changes in routine.

Senior Dogs

Older dogs may experience changes related to ageing.

These may include:

• reduced activity,
• changes in sleep patterns,
• increased sensitivity,
• confusion,
• reduced tolerance.

Behaviour changes in senior dogs should not automatically be considered “old age”. Veterinary assessment may be required to identify pain, illness or age-related conditions.

Behavioural Concerns

A behavioural concern occurs when a behaviour negatively affects:

• the dog’s welfare,
• the welfare of others,
• the human–dog relationship,
• the dog’s ability to function safely.

A behaviour may become concerning when it is:

• excessive,
• unpredictable,
• distressing,
• dangerous,
• unable to be interrupted,
• significantly different from the dog’s usual behaviour.

Importantly, behavioural concerns are not always caused by “bad behaviour”. They often represent communication that something is wrong.

Sudden Changes in Behaviour

One of the most important warning signs in canine behaviour is a sudden change.

A dog that suddenly begins behaving differently may be experiencing:

• pain,
• illness,
• fear,
• stress,
• environmental changes,
• changes in social relationships.

Examples include:

• a previously friendly dog becoming avoidant,
• a calm dog becoming reactive,
• a house-trained dog having accidents,
• a social dog withdrawing.

Sudden behavioural changes should prompt consideration of physical and emotional causes rather than immediate assumptions about training.

Fear-Based Behaviours

Fear is one of the most common emotional influences on behaviour.

Fear-related behaviours may include:

• avoidance,
• hiding,
• freezing,
• trembling,
• barking,
• defensive responses.

A fearful dog is not necessarily being aggressive or disobedient.

Many behaviours that humans find challenging are attempts by the dog to increase safety or distance.

Effective support focuses on:

• identifying triggers,
• reducing unnecessary pressure,
• creating positive associations,
• building confidence gradually.

Aggression and Defensive Behaviour

Aggression is one of the most misunderstood areas of canine behaviour.

Aggressive behaviours may include:

• growling,
• snapping,
• lunging,
• biting.

However, these behaviours are not a personality trait or moral failing.

Aggression is behaviour that occurs within a context and may be influenced by:

• fear,
• pain,
• frustration,
• resource concerns,
• previous experiences,
• environmental factors.

Understanding the motivation behind the behaviour is essential.

A dog displaying aggressive behaviour is communicating that something about the situation exceeds its ability to cope.

Compulsive and Repetitive Behaviours

Some dogs develop repetitive behaviours that may interfere with normal functioning.

Examples may include:

• excessive licking,
• spinning,
• chasing shadows,
• repetitive pacing.

These behaviours may be associated with:

• stress,
• frustration,
• genetics,
• insufficient enrichment,
• underlying health concerns.

Assessment should consider both environmental and medical factors.

When to Seek Additional Support

Some behavioural concerns require support from appropriately qualified professionals.

Referral may be appropriate when:

• behaviour presents safety risks,
• there are significant emotional concerns,
• behaviour changes suddenly,
• pain or illness is suspected,
• the behaviour does not improve with appropriate management.

Veterinary assessment should be considered where physical health may contribute to behaviour.

Behaviour professionals may assist with complex behavioural concerns requiring specialised assessment and intervention.

Avoiding Punitive Interpretations

A common mistake is assuming that behaviour problems occur because dogs are:

• dominant,
• stubborn,
• trying to control humans.

These explanations often prevent accurate assessment.

Punishment may suppress visible behaviour without addressing the underlying reason.

For example, punishing a dog for growling may remove an important warning signal while leaving the dog feeling unsafe.

Effective behaviour support focuses on:

• understanding,
• prevention,
• teaching,
• environmental management,
• meeting needs.

The Importance of Early Recognition

Recognising behavioural concerns early allows humans to provide support before problems escalate.

Early intervention can improve:

• welfare,
• safety,
• confidence,
• relationships.

Small changes in behaviour can provide important information about a dog’s experience.

Learning to notice these changes is a key skill in responsible dog care.

Key Practice Principle

Normal canine behaviours should not be confused with behavioural problems.

Dogs communicate through their behaviour, and effective support requires understanding the reason behind the behaviour rather than simply reacting to the behaviour itself.

A welfare-focused approach recognises that behaviour is influenced by biology, emotions, learning and environment.

The goal is not to create dogs that never express natural behaviours.

The goal is to understand dogs well enough to support them in expressing those behaviours safely and appropriately within human environments.