Why Do Dogs Wink? Unraveling the Mystery Behind Canine Eye Communication
Have you ever caught your furry friend giving you a cheeky wink? It’s a heart-melting moment that can leave you wondering, “Did my dog just wink at me?”
Well, you’re not alone in this puzzling experience. Dog owners around the world have reported their canine companions engaging in this seemingly human-like behavior. But what’s really going on when dogs wink? Is it just a coincidence, or is there more to this subtle eye movement than meets the eye?
Let’s dive into the fascinating world of canine communication and uncover the truth behind those adorable dog winks.

The Basics of Canine Communication
Before we get into the specifics of dog winking, it’s important to understand that dogs are masters of nonverbal communication. They use a complex system of body language, vocalizations, and facial expressions to convey their thoughts and feelings. From the position of their ears to the way they hold their tail, every part of a dog’s body can be used to send a message.
When it comes to facial expressions, dogs are more limited than humans in terms of the muscles they can control. However, they still manage to convey a wide range of emotions through their eyes, mouth, and overall facial posture. This is where winking comes into play – it’s just one of the many ways dogs might be trying to communicate with us or respond to their environment.
The Science Behind Dog Winking
Now, you might be wondering if there’s any scientific evidence to support the idea that dogs actually wink on purpose. While research specifically on dog winking is limited, there have been several studies on canine facial expressions and eye movements that can help us understand this behavior better.
A study published in the journal Scientific Reports in 2017 found that dogs have specific facial muscles that allow them to raise their inner eyebrows, creating what we often interpret as a “puppy dog eyes” expression. This muscle, called the levator anguli oculi medialis, is particularly well-developed in dogs compared to wolves, suggesting that it may have evolved as dogs became domesticated and learned to communicate better with humans.
While this study doesn’t directly address winking, it does show that dogs have evolved facial muscles specifically for communication with humans. This lends credence to the idea that other eye movements, including winking, could also be used for communication.
Another interesting piece of scientific evidence comes from research on dogs’ ability to understand human gestures and facial expressions. A 2016 study published in Biology Letters found that dogs can recognize human emotions by looking at our faces. This suggests that dogs are highly attuned to our facial expressions and may try to mimic them as a form of social bonding.

Reasons Why Dogs Might Wink
Now that we’ve established that dogs are capable of using facial expressions for communication, let’s explore some of the possible reasons why your dog might be winking at you:
Mimicry and Social Bonding
One theory is that dogs wink as a form of mimicry. Since they’re so attuned to our facial expressions, they might pick up on our winking behavior and attempt to replicate it. This could be a way of strengthening the bond between dog and owner, similar to how mirroring body language can increase rapport between humans.
Dr. Brian Hare, a canine cognition specialist at Duke University, suggests that dogs have evolved to be exquisitely sensitive to human gestures and facial expressions. In his book “The Genius of Dogs,” he writes, “Dogs are so attuned to our gestures and facial expressions that they may sometimes try to imitate them, including winking.”
Submissive Behavior
In some cases, a dog’s wink might be a sign of submissive behavior. In the canine world, direct eye contact can be seen as a challenge or threat. By winking or briefly closing one eye, a dog might be trying to break eye contact in a non-threatening way, essentially saying, “I mean no harm.”
Animal behaviorist Patricia McConnell explains in her book “The Other End of the Leash” that subtle eye movements can be important signals in canine communication. She writes, “A quick wink or eye narrowing can be a way for a dog to diffuse tension or show deference to another individual, whether dog or human.”
Seeking Attention
Let’s face it – dogs are masters at getting our attention. If your dog has learned that winking elicits a positive response from you (like cooing over how cute they are or giving them a treat), they might repeat the behavior to get more of that sweet, sweet attention.
This is an example of operant conditioning, a principle of learning theory where behaviors are reinforced by their consequences. If winking leads to positive outcomes for your dog, they’re more likely to do it again in the future.
Medical Issues
While we’d like to think all dog winks are cute attempts at communication, it’s important to note that sometimes, what looks like a wink could be a sign of a medical issue. Excessive blinking or winking in one eye could indicate:
- An eye infection
- Dry eye syndrome
- Allergies
- A foreign object in the eye
- Entropion (a condition where the eyelid rolls inward)
If you notice your dog winking or blinking excessively, especially if it’s accompanied by other symptoms like redness, discharge, or pawing at the eye, it’s best to consult with a veterinarian.
The Role of Breed and Individual Personality
It’s worth noting that some dog breeds might be more prone to winking-like behaviors due to their facial structure. Breeds with loose, wrinkly skin around their faces, like Bulldogs or Shar Peis, might appear to wink more often simply because their skin folds can sometimes cover their eyes momentarily.
Additionally, just like humans, dogs have individual personalities. Some dogs might be more expressive with their faces and eyes than others. This could be due to a combination of genetics, early socialization experiences, and learned behaviors.
The Human Factor: Are We Seeing What We Want to See?
As we delve deeper into the mystery of dog winking, it’s important to consider the human factor in this equation. As highly social creatures ourselves, we’re wired to look for and interpret facial expressions, even in non-human animals. This tendency, known as anthropomorphism, can sometimes lead us to attribute human-like intentions to animal behaviors.
Dr. Alexandra Horowitz, a cognitive scientist and author of “Inside of a Dog: What Dogs See, Smell, and Know,” cautions against over-interpreting canine behaviors through a human lens. She writes, “We are so good at reading faces that we see faces where there are none, and read expressions that aren’t there.”
This doesn’t mean that dog winks are meaningless, but it does suggest that we should be careful about assuming our interpretations are always correct. What we perceive as a deliberate wink might sometimes be a simple eye movement or muscle twitch.
The Importance of Context in Interpreting Dog Winks
When trying to understand why your dog might be winking, it’s crucial to consider the context in which the behavior occurs. Is your dog relaxed and comfortable, or do they seem anxious or stressed? Are there any other body language cues you can observe along with the wink?
For example, if your dog winks while their body is relaxed, their tail is wagging, and they’re looking at you with a soft expression, it’s more likely to be a positive social signal. On the other hand, if the wink is accompanied by a tense body posture, flattened ears, or a tucked tail, it might be a sign of discomfort or submission.
Dr. Stanley Coren, a renowned expert on dog-human interaction and author of “How to Speak Dog,” emphasizes the importance of looking at the whole picture when interpreting dog behavior. He states, “No single signal in dog body language should be interpreted in isolation. It’s the combination of signals and the context that gives us the most accurate understanding of what a dog is trying to communicate.”
Can You Teach a Dog to Wink?
Given that dogs are highly trainable animals, you might be wondering if it’s possible to teach a dog to wink on command. The answer is yes, it is possible, although it might require some patience and consistency.
Training a dog to wink usually involves capturing the behavior when it occurs naturally and then reinforcing it with treats and praise. Over time, you can associate the behavior with a verbal cue or hand signal. However, it’s important to remember that not all dogs will pick up this trick easily, and it’s crucial to use positive, reward-based training methods.
Keep in mind that while teaching your dog to wink can be a fun bonding activity, it’s not necessary for their well-being. Dogs have plenty of natural ways to communicate with us, and forcing unnatural behaviors isn’t always in their best interest.
The Bigger Picture: Eye Contact and Bonding
While we’ve focused a lot on winking, it’s worth zooming out to consider the broader importance of eye contact in the human-dog relationship. A study published in Science in 2015 found that mutual gazing between dogs and their owners increases levels of oxytocin – often called the “love hormone” – in both the dog and the human. This is similar to the bond between a mother and infant.
This research suggests that eye contact plays a crucial role in the unique bond between humans and dogs. Whether it’s a long, loving gaze or a quick wink, these eye interactions seem to be an important part of how we connect with our canine companions.
Conclusion: The Enigma of the Canine Wink
After exploring the science, theories, and observations surrounding dog winking, we’re left with a complex and somewhat mysterious picture. While we can’t say for certain that every dog wink is a deliberate attempt at communication, the evidence suggests that at least some of these eye movements are meaningful.
Dogs, through their long history of domestication and co-evolution with humans, have developed remarkable abilities to read and respond to our emotional states and facial expressions. The fact that they might use winking as a form of communication or social bonding is a testament to their intelligence and their deep connection with us.
However, it’s important to remember that dogs are not humans, and we should be cautious about projecting too many human-like intentions onto their behaviors. Each wink should be interpreted in the context of the dog’s overall body language and the situation at hand.
Whether your dog’s wink is a learned behavior, a sign of affection, a submissive gesture, or simply a coincidental eye movement, one thing is clear: it’s a behavior that captivates us and strengthens the unique bond we share with our four-legged friends. So the next time your furry companion gives you a wink, feel free to wink back – even if you’re not entirely sure what it means, it’s a special moment of connection between you and your beloved pet.
In the end, the mystery of the dog wink reminds us of the beautiful complexity of the human-animal bond. It’s a small gesture that encapsulates the joy, curiosity, and wonder that our relationships with dogs bring into our lives. And isn’t that, after all, why we love them so much?