The Basics of Canine Licking Behaviour
Dogs lick each other for a multitude of reasons, serving as a fundamental aspect of their social communication and interaction. This behaviour is deeply ingrained, stemming from puppyhood where they learn social cues and develop bonds. It's not just about affection; licking is a complex language involving appeasement, social grooming, and information gathering.
- Licking is a primary form of communication and social bonding for dogs.
- Puppies learn this behaviour from their mother and littermates.
- It can indicate appeasement, submission, or a desire for attention.
- Dogs may also lick to signal health or contentment.
When puppies are born, their mother licks them extensively to stimulate breathing, clean them, and encourage elimination. This early exposure establishes licking as a normal and important part of their development. As they grow, they extend this behaviour to their littermates and other dogs they encounter. It’s a way to explore their environment and each other, testing boundaries and reinforcing their place within a social hierarchy. Observing dogs interacting offers a wealth of information about their pack dynamics and individual personalities. The nuances of their licks – the duration, intensity, and location – all contribute to the message being conveyed. It’s a behaviour that facilitates social cohesion and mutual understanding within a canine community.
This natural inclination means that when you introduce a new dog or observe your dog interacting with others, licking is likely to be a prominent part of their initial greetings and ongoing relationships. It's their way of saying hello, checking in, and maintaining social order. It's important to remember that this is entirely normal, provided it doesn't become excessive or aggressive.
Understanding Puppy Licking
From the moment they are born, puppies are subjected to and engage in licking. The mother dog licks her pups to stimulate bodily functions, clean them, and show maternal care. This imprinted behaviour teaches puppies that licking is a normal part of interaction and can signal safety and comfort. They then practice this behaviour with their littermates, often as a playful greeting or a way to explore their siblings. This early socialisation through licking helps them develop their understanding of canine communication. When a puppy licks an adult dog, it’s often a sign of deference and an attempt to elicit care or attention, mirroring the behaviour they learned from their mother.
If a puppy is excessively licking an adult dog, it can sometimes be a bid for attention or a request for food, as they might associate licking with being fed by their mother. This is typically a harmless phase as they learn appropriate social boundaries.
Social Bonding and Communication Signals
Why do dogs lick each other? A primary reason is to foster and maintain social bonds. Licking releases endorphins in dogs, similar to how a good scratch feels to us, creating a sense of pleasure and reinforcing the connection between individuals. This mutual grooming reinforces pack cohesion and establishes friendly relationships, much like primates grooming each other. It's a behaviour that signifies trust and affection, helping to build and maintain their social network.
Beyond simple affection, licking serves as a sophisticated form of communication. A dog might lick another dog's muzzle as a sign of appeasement or submission, particularly towards a dominant or older dog. This gesture can help to de-escalate potential conflicts and maintain a peaceful social environment. Think of it as a dog equivalent of a polite nod or a conciliatory word. The recipient of the lick may respond with subtle body language, indicating whether the greeting is accepted or if further interaction is desired. These silent conversations are crucial for navigating the complexities of canine social structures.
Furthermore, dogs use licking to gather information. A dog might lick another dog's ears, tail, or anal region to gather scent information. These areas are rich in scent glands, providing clues about the other dog's health, diet, emotional state, and even reproductive status. It's akin to reading a personal profile or checking someone's social media feed. This olfactory investigation is a vital part of how dogs understand their world and the individuals within it. A dog that is frequently sniffing and licking others is simply trying to stay informed about their social circle.
Consider the scenario of two dogs meeting for the first time. Licking will likely be part of their initial greeting rituals, alongside sniffing. It's their way of assessing each other and establishing a common ground for interaction. If the licking is reciprocal and accompanied by relaxed body language, it indicates a positive interaction. If one dog seems uncomfortable or is repeatedly licked without reciprocation, it might suggest an imbalance or a need for intervention.
Licking as Appeasement
One of the most common reasons a dog licks another is to signal appeasement or submission. This behaviour often occurs when a less dominant dog encounters a more dominant one, or when a dog is trying to pacify another who seems agitated. A dog might lick the muzzle of another, especially around the mouth and nose area, as a way to say, "I mean no harm," or "I acknowledge your status." This is a deeply ingrained behaviour learned from puppyhood, where they would lick their mother's mouth to solicit food regurgitation. This instinct persists into adulthood, serving as a vital social lubricant to prevent unnecessary conflict.
This appeasement behaviour is a key factor in dogs navigating social hierarchies.
When you see a dog licking another dog's face, particularly the muzzle, it's often a sign that the licker is showing respect or attempting to calm the situation. The licked dog might respond by allowing the licking to continue, or by giving a brief lick back, signalling acceptance of the submissive gesture.
Information Gathering Through Scent
Dogs possess an extraordinary sense of smell, and licking plays a role in their olfactory investigations. Areas around the mouth, anus, and genitals of other dogs are packed with scent glands that contain a wealth of information. When a dog licks these areas on another dog, they are essentially reading a complex scent profile. This allows them to learn about the other dog's health, diet, hormonal status, and recent activities. It’s a form of social intelligence gathering that is critical for understanding their pack mates and navigating their social environment.
This licking behaviour is a natural and healthy part of how dogs get to know each other, much like humans might ask questions or observe body language to understand someone. It’s a fundamental way they build a picture of the dogs around them.
Grooming and Health-Related Licking
Dogs also lick each other as a form of social grooming. This isn't just about cleanliness; it's a bonding ritual. Dogs may groom each other's ears, faces, or other hard-to-reach spots. This mutual grooming helps to strengthen their social ties and can be a calming activity for both dogs involved. It mirrors the care they receive from their mother and can be seen as an act of mutual affection and assistance.
Sometimes, licking can be related to health. If one dog has a minor injury, a wound, or even an area of irritation, another dog might lick at it. While this might seem like an attempt to help, it's often more about investigating an unusual scent or texture. In some cases, it could be an instinctual response to potential illness or distress, though dogs are not medical professionals and their 'treatment' should not be relied upon. It's crucial to distinguish between friendly grooming and a dog persistently licking an area that might indicate a health problem, such as a ruptured cyst in dogs or a localized skin issue.
If you notice dogs excessively licking specific areas on each other, or if one dog seems distressed by the licking, it's worth a closer inspection. For instance, persistent licking might be a sign of discomfort related to fleas, allergies, or even the early stages of conditions like yeast dermatitis in dogs. While the licking dog is not diagnosing, the behaviour might draw your attention to an area that needs veterinary care. Similarly, excessive licking in one spot could also be a sign of anxiety or boredom in the dog doing the licking, rather than a response to the other dog.
It's important to monitor your dogs' interactions. If the licking appears to be causing distress, aggression, or if it's focused on a specific body part that looks irritated, it's time to investigate further. A vet check can rule out any underlying medical causes that might be prompting this behaviour.
Mutual Grooming as a Social Activity
Mutual grooming, or allogrooming, is a common and important social behaviour among dogs. It's a way for them to bond, reinforce social hierarchies, and show affection. Dogs will often lick each other's faces, ears, and even their hindquarters. This can be particularly prevalent between dogs who share a close relationship, such as those living in the same household. The act itself is relaxing and can help reduce stress and anxiety for both dogs involved. It’s a tangible expression of their bond, reinforcing their sense of belonging within their canine family unit.
Observe how your dogs groom each other. Is it gentle and reciprocal, or is one dog tolerating grooming from another? Generally, balanced grooming indicates a healthy, positive relationship. This behaviour is a testament to the social nature of dogs and their need for connection.
When Licking Signals a Health Concern
While social licking is normal, excessive or targeted licking can sometimes point to an underlying health issue. For example, a dog might lick another dog's skin if there's an unusual scent from a skin condition. This could include conditions like fungal skin conditions in dogs, or even areas that might be developing into something more serious like a cancer growth in dogs or a non-cancerous lump such as a sebaceous gland cyst in dogs. The licker isn't diagnosing, but rather investigating an anomaly. In pets, we often see them lick wounds or irritated areas on themselves, and this behaviour can extend to their companions. It could also be a sign of itchiness due to allergies or parasites.
If you notice a dog repeatedly licking a particular spot on another dog, pay close attention. It might be your first indication that something isn't right. This often prompts owners to examine the area more closely, potentially leading to an early diagnosis by a veterinary professional. It is vital that the owner takes over the role of health assessor, rather than relying on the dogs' behaviour alone.
When to Be Concerned About Licking
While dogs licking each other is largely a normal and healthy behaviour, there are times when it warrants attention. If the licking is aggressive, rough, or causes distress to one of the dogs, it’s a clear sign of a problem. This could indicate dominance issues, fear, or a lack of social understanding between the dogs. In such cases, it’s important to separate them and reassess their interaction dynamics. Over-enthusiastic or persistent licking by one dog towards another, especially if it's concentrated on a specific area, might also signal an issue.
Excessive licking directed at a particular body part, or if the licked dog is showing signs of pain or avoidance (like flinching, growling, or trying to escape), suggests that the behaviour is not benign. This could be due to a skin irritation, a wound, a parasite infestation, or even a more serious underlying health condition that the licking dog is perhaps reacting to, or the dog being licked is trying to soothe. The dog doing the licking might also be displaying anxiety or obsessive-compulsive behaviours if the licking is indiscriminate or goes on for prolonged periods without apparent cause. For example, if a dog has dog cancer lump on leg, another dog might lick it out of curiosity or concern.
It is essential to consider the context. Is the licking part of a playful greeting, or is it a one-sided, obsessive behaviour? Are both dogs comfortable? If you have doubts, it is always best to consult with a veterinarian or a certified animal behaviourist. They can help you understand the specific dynamics at play and provide guidance on how to manage the situation, ensuring the well-being and comfort of both dogs. Sometimes, a dog might be licking another dog because they are trying to get attention for themselves, or because they are bored, especially if they are dogs that are low shedding and their need for mental stimulation might be overlooked.
Intervene if licking causes visible distress or injury to either dog.
A key indicator is the reaction of the dog being licked. If they are leaning into it, wagging their tail, or licking back, it's generally fine. If they are trying to pull away, showing their teeth, or seem tense, the interaction needs to be interrupted. This is also true if the dog doing the licking seems fixated, to the point where they ignore their surroundings or their owner's cues.
Recognising Problematic Licking
Problematic licking can manifest in several ways. It might be aggressive, with the licker showing tense body language or nipping. It could be obsessive, where a dog licks the same spot on another dog for extended periods, ignoring other stimuli. Or it could be that the licked dog is clearly uncomfortable, showing signs of stress such as lip-licking, yawning, or attempting to move away. Pay attention to the frequency and intensity of the licking. A quick lick during a greeting is different from continuous, frantic licking.
Another sign to watch for is if one dog is consistently grooming another to the point where fur is thinning or the skin is becoming irritated. This might indicate a problem with the dog doing the grooming, or a serious underlying condition in the dog being groomed, such as that which might be associated with early stage cushing's disease in dogs skin lesions.
Seeking Professional Advice
If you are concerned about the licking behaviour between your dogs, do not hesitate to seek professional help. A veterinarian can rule out any medical causes that might be contributing to the behaviour, either in the dog doing the licking or the one being licked. They can also provide advice on managing social dynamics if the issue is behavioural. A qualified animal behaviourist can offer tailored strategies to address specific issues, such as implementing positive reinforcement training, managing environmental enrichment, or developing desensitisation and counter-conditioning plans. Early intervention can prevent escalation and ensure a harmonious living environment for your pets.
Practical Tips for Managing Dog Interactions
When introducing dogs or managing their interactions, providing a safe and structured environment is crucial. Ensure that both dogs have ample personal space and resources (food bowls, water, resting spots) to prevent competition. Supervise their interactions, especially in the early stages, and be ready to step in if the licking becomes excessive or causes distress. If you notice a dog repeatedly licking another dog's paws, it might be a sign of the licked dog’s discomfort or anxiety, or the licker's own stress, possibly leading to dog licking and biting paws behaviour in one or both.
Encourage positive interactions by rewarding calm behaviour and gentle play. If one dog is clearly uncomfortable with the other's licking, do not force them to tolerate it. Instead, create opportunities for them to interact positively in short, controlled sessions. Using positive reinforcement when they show calm behaviour around each other can help build a positive association. This approach helps both dogs feel more secure and less inclined towards problematic behaviours like excessive licking or avoidance.
Provide appropriate chew toys and mental stimulation for all dogs to redirect licking energy.
It’s also important to ensure that your dogs are getting enough physical exercise and mental stimulation. Boredom or pent-up energy can sometimes lead to excessive licking behaviours, both on themselves and on other dogs. Ensure they have access to puzzle toys, training sessions, and opportunities for outdoor play. If you are bringing a new dog into a home with existing dogs, a gradual introduction process is key. Start with parallel walks, then supervised introductions in neutral territory before allowing them full access to your home. This helps them build a positive relationship from the outset.
Consider the individual personalities and histories of your dogs. Some dogs are naturally more social and tolerant than others. For instance, a well-socialised dog might be patient with a younger or more boisterous dog, whereas two highly energetic dogs might need more careful management to avoid overstimulation. If you have concerns about the fur on your dogs, such as matting or skin issues that might be attracting licking, ensure regular grooming is part of your routine.
Ultimately, understanding the underlying reasons for licking behaviour – whether it's social bonding, appeasement, grooming, or a sign of distress – is the first step to managing it effectively. Always prioritise the comfort and safety of all dogs involved.