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Some of the things dogs can smell… shouldn’t be possible.
But they are. And I’m going to prove it to you. Let’s start with one of the most fascinating… whale poop. 1. Whale poop Because dogs can detect whale poop… floating in the ocean… from over a mile away. Scientists actually use trained dogs on boats to track whales by finding their feces. Because even when the whales are completely invisible… their scent isn’t. You might be wondering… why would anyone want to track whale poop? But for scientists, it’s a valuable source of information -- about what whales eat… their hormones… and even how healthy they are. So even when the whale itself is impossible to find… a dog can still locate it. But as impressive as that sounds… this next one is even harder to believe. 2. Identical twins Because dogs can even tell identical twins apart… just by smell. Even though identical twins share the same DNA… and look completely identical to us… they don’t smell the same to a dog. Because your scent isn’t just determined by your genes -- it’s influenced by your diet… your environment… and even the bacteria living on your skin. So while we see two identical people… a dog smells two completely different scent profiles. But dogs don’t just tell people apart… they can actually track exactly where you’ve been. 3. Your exact path (hours later) Because dogs don’t just recognize scent… they can follow it. And it is almost impossible to explain how good they are at it. Every step you take leaves behind a trail -- tiny skin cells, crushed plants… disturbed ground. And while that trail is completely invisible to us… to a dog, it’s like a map. They can track exactly where you walked… even hours later. And even more impressively… they can tell which direction you went. Because each step leaves a slightly different scent -- meaning a dog can literally follow your path through time. But what’s even more impressive… is that some things don’t leave a trail at all. And dogs can still find them. Termites. 4. Termites inside walls Even when an infestation is buried inside wood… with no visible signs at all… trained dogs can smell it. Because termites release tiny chemical signals -- and to a dog, even that is enough. In fact, termite detection dogs are so accurate… they can find infestations long before humans ever notice them. Which means they’re not just detecting a problem… they’re detecting it before it even becomes visible. And sometimes… those invisible things are happening inside our bodies. 5. Diseases (cancer, diabetes, Parkinson’s)Diseases. Dogs have been trained to detect diseases like cancer… diabetes… and even Parkinson’s. Because illness changes the chemistry of your body -- releasing tiny compounds that alter your scent. And while we can’t detect those changes… a dog can. In some cases, dogs have identified cancer… just by smelling a person’s breath or skin. Diabetic alert dogs can warn their owners when blood sugar is dropping -- sometimes before any symptoms appear. And with Parkinson’s… dogs have been able to detect changes in scent years before a diagnosis. Which means a dog’s nose isn’t just powerful… it can be life-saving. But even that might not be the limit. Because dogs can detect something even smaller… something we can’t even see. 6. Viruses (COVID-19) Viruses. Even though they’re microscopic -- far too small to see -- dogs can sometimes detect them just by smell. It works in a similar way to diseases. When a virus infects the body… it changes how we smell. It alters the chemicals we release through our breath… our skin… even our sweat. And dogs can pick up on those changes. During the COVID-19 pandemic, trained dogs were able to identify infected people just by smelling samples -- quickly, and with surprising accuracy. Which means they weren’t smelling the virus itself… but the invisible chemical changes it caused. And at that point… it starts to feel like there’s almost nothing a dog’s nose can’t detect. So we started training dogs to find things that aren’t invisible at all… but deliberately hidden. 7. Explosives / drugs Drugs… explosives… dirty money… sealed away, and difficult to detect. But even the smallest traces release tiny particles into the air -- particles a dog can smell. That’s why detection dogs are used in airports, border crossings… and police operations around the world. Because even if something is carefully hidden… tightly wrapped… or buried deep inside luggage… a dog can still find it. And sometimes… what they’re trained to detect is far more surprising than explosives and drugs. 8. Hidden electronics (USB drives, hard disks) Hidden electronics. USB drives, hard disks… These things do not even have a smell. Or at least… it doesn’t seem like they do. These devices can be concealed inside walls… furniture… even inside everyday objects. But these electronics contain specific materials -- like certain plastics and chemical compounds -- that release faint odors. Odors far too subtle for humans to notice… but not for a dog. Which is why specially trained dogs can locate hidden digital storage devices… even when they’re carefully concealed. And this brings us to the final point. Things that aren’t just hidden… but lost forever.9. Human remains underwater (ENDING)Lost beneath the surface of lakes… rivers… and oceans. Places where visibility is low… and searching can take days… or even weeks. But even there… a dog’s nose can still work. Specially trained dogs are able to detect human remains underwater -- by picking up scent particles that rise to the surface. Particles carried through the water… and released into the air. Invisible to us… but detectable to a dog. Which means that even in places where humans see nothing… a dog can still find answers. And sometimes… closure. Because a dog’s sense of smell isn’t just powerful… it reveals a world we don’t even know exists.
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Hugging your dog To us, it’s a sign of affection. But in the dog world… it can feel very different. Wrapping your arms around another animal restricts their movement… and takes away their ability to walk away. And for many dogs, that’s uncomfortable. Not all dogs hate hugs. Some tolerate them… and some even seem to enjoy them. But many don’t -- they just tolerate them. In studies observing dog behavior during human interaction, dogs showed more stress signals when they were physically restrained… compared to when they could move freely. And you can often see these signals right in moments like this. They turn their head away… lick their lips… or suddenly go still. Not because they love it -- but because they’re trying to cope with it. So if your dog leans into you, that’s their version of affection. But if they pull away, if they are stiff or if they lean their head away… it’s probably best to let them go.
Patting dog on the top of their head and touching their face is viewed as something all dogs enjoy. But for many dogs, a hand coming straight toward their face can feel intrusive… even uncomfortable. It blocks their vision. It comes from above. And they can’t always predict what you’re about to do. So instead of leaning into it, many dogs will lean away. Turn their head. Blink more. Or slightly pull back. Again, not because they’re being difficult -- but because they’re trying to create a bit of space. Studies looking at human–dog interaction have shown that the type and location of touch matters. Dogs tend to be more relaxed when contact happens on areas like the chest… the side of the neck… or along the body. Places they can see… and feel in control of. So if you want to pet your dog in a way they actually enjoy, it’s often less about how much… and more about where.
Looking into your dog’s eyes. Now… this one depends. Soft eye contact? That can actually be a good thing. Dogs often use gentle eye contact to bond with their owners. But hard staring… is something completely different. In the dog world, a fixed, unbroken stare is often a warning signal. It can mean tension… challenge… or even a threat. And many dogs will react to it. They’ll look away… turn their head… or become noticeably still. Because from their perspective, this isn’t friendly. It’s pressure. Studies on dog communication show that dogs are very sensitive to human gaze and attention. They constantly read where we’re looking… and how we’re looking. So a soft glance can feel safe. But a hard, prolonged stare -- especially up close… can make some dogs uncomfortable.
Especially forcing your dog into them. And it does not matter if it is with other dogs, or other people. Because sometimes we might think we are helping the dog and of course we all want our dog to be friendly To be social and to be confident. So when we meet someone on a walk, we bring them closer. We say „go say hi“ But not every dog wants to say hi. And that’s completely normal. Just like people, dogs have preferences. And when they don’t have a choice… that’s where stress starts to build. You’ll often see it in small signals. They slow down… hang back… or position themselves behind you. Sometimes they freeze. Sometimes they try to avoid the situation entirely. But when we keep moving them forward anyway, we’re ignoring what they’re trying to say. And over time, this can actually make them more anxious -- not more social. Because instead of learning that new situations are safe… they learn they have no control. So rather than pushing your dog into interactions, it’s usually better to let them choose. Give them space. Let them approach at their own pace. Because confidence doesn’t come from being forced -- it comes from feeling safe.
For us, a walk is simple. Get from point A to point B. Maybe get some exercise. But for a dog… a walk is something completely different. It’s how they explore the world. Through smell. Dogs experience their environment primarily through scent, not sight. So when they stop to sniff, they’re not being slow… they’re gathering information. Who was here. What happened. How long ago. And when we keep pulling them forward… rushing them along… we’re cutting that experience short. Studies on canine behavior show that allowing dogs to sniff during walks can actually lower their stress levels and promote more relaxed behavior. Because it’s mentally enriching. It’s not just a walk. It’s stimulation. And we all know how important stimulation is – but sometimes we take it too deep, we buy different puzzle toys, inventing different tricks and tactics, but we often forget the basics – just let your dog walk and sniff. So sometimes, the best thing you can do on a walk… is slow down. And let your dog read the world in the way they’re meant to.
But focus on something else. Noise. And chaos. Our world is loud. Voices. Traffic. TV. Music. And most of the time… we barely notice it. But dogs do. Their hearing is far more sensitive than ours. And they don’t always understand where these sounds are coming from… or what they mean. Sudden noises. Raised voices. Chaotic environments. They can all be overwhelming. And it’s not just the sound itself. Dogs are extremely tuned in to our emotions. So when things get tense… loud… unpredictable… they feel that too. You might see it in small changes. They become restless… start pacing… or look for a place to hide. Not because something is physically wrong -- but because the environment feels unstable. And when that happens often enough, it can build into long-term stress. So while we can’t control everything, it helps to be aware of the environment we’re creating around them. Because what feels normal to us… can be overwhelming to them.
Lets start with something extremely important – consistency, or in this case – inconsistency Because being inconsistent with the rules can be extremely stresfull for the dog. Sometimes your dog is allowed on the couch. Other times, they’re not. One day pulling on the leash is fine… the next day, it’s not. And from our perspective, that makes sense. There are exceptions. Different situations. But to a dog… that’s confusing. Dogs don’t think in “sometimes.” They learn through patterns. Clear, repeatable patterns. And when those patterns keep changing, they’re left guessing. What works. What doesn’t. What you actually want. Studies on learning and behavior show that consistent signals make it much easier for dogs to understand and predict outcomes. While inconsistent responses can slow learning… and increase frustration. Not because the dog is stubborn -- but because the rules keep shifting. So when a dog seems like they’re “not listening”… sometimes they’re not being disobedient. They’re just trying to figure out which version of the rule applies today.
How we introduce new things. Because when we teach something new, or expose a dog to something unfamiliar… we often expect quick progress. When we succesfully train them proper sit command, we suddenly expect they will do it perfectly outside or even around distraction. But for a dog, that’s a huge jump. And it is important to understand that learning doesn’t work in big leaps. It works in small steps. Gradual exposure… repetition… building confidence over time. The same applies to things they’re afraid of. Loud noises. Busy places. The vet. The car. If you push them too far, too quickly… you’re not helping them get used to it. You’re overwhelming them. And instead of learning that the situation is safe… they learn that it’s something to fear. Research on animal behavior shows that gradual exposure -- often called desensitization -- is far more effective than forcing a dog to “just deal with it.” Because confidence doesn’t come from being pushed through fear. It comes from experiencing something at a level they can handle… and slowly building from there. So sometimes, the fastest way forward… is actually to slow down.
Your dog is constantly communicating with you. But dogs do not use words. They use posture… movement… small, subtle signals. And they’re happening all the time. Turning their head away. Licking their lips. Yawning when they’re not tired. Freezing for a moment. These are not random. They’re signals. Ways of saying… “I’m uncomfortable.” “I need space.” “This is too much.” Studies looking at human–dog interaction have shown that these stress signals are often missed… or misunderstood by people. Which means many dogs are communicating clearly… but no one is listening. And when those signals are ignored, dogs often have to escalate. From subtle… to obvious. From turning away… to growling… or snapping. Not because they’re aggressive -- but because the quieter signals didn’t work. So learning to recognize these small signs… might be one of the most important things you can do for your dog.
Getting angry at normal dog behavior. Dogs bark. They chew. They dig. They get excited. That’s not misbehavior. That’s being a dog. But from our perspective, it can feel frustrating. A chewed shoe… barking at the door… jumping when someone comes in. And the natural reaction is… to get angry. To raise your voice. To tell them to stop. But the problem is -- the dog often doesn’t understand what they did wrong. Because they’re not breaking a rule they know. They’re just following their instincts. Studies on training methods show that relying on punishment can increase stress and damage the relationship between dog and owner. Not because the dog is “bad”… but because they’re confused. What works much better is showing them what to do instead. Giving them an alternative. A clear, repeatable behavior that leads to a positive outcome. For example -- if your dog jumps on people when they come in… don’t just tell them “no.” Teach them to sit. And when they really sit instead of jumping, than reward the moment With a treat or with a big praise. And over time, that becomes their new default. So instead of trying to suppress what comes naturally to them… it’s usually more effective to guide it in the right direction.
Punishing… or yelling at your dog. It might seem like it works. They stop what they’re doing. They back off. They freeze. Problem solved… at least in that moment. But what’s really happening is something very different. The dog isn’t learning what you want. They’re learning to avoid the situation… or to avoid you. Studies comparing training methods have shown that dogs trained with punishment tend to show more stress… and more negative emotional states. Not because they’re stubborn -- but because they’re unsure. And over time, that uncertainty can affect your relationship. Because instead of seeing you as a source of guidance… they start seeing you as something unpredictable. Something they need to be careful around. And that’s where problems begin. Not just in behavior -- but in trust. So while punishment can stop behavior in the moment… it doesn’t teach the dog what to do instead. And without that clarity… the same behavior usually comes back. Dogs can tell identical twins apart just by smell.
They can track which direction a person walked by sniffing their footsteps. And trained dogs can even detect whale poop floating in the ocean from more than a mile away. Because dogs live in a world we cannot see. A world made almost entirely of smells. And their sense of smell is basically a superpower. But the way a dog’s nose actually works is even stranger than you might think. And once you understand it, you’ll never look at your dog sniffing the ground the same way again. “How Powerful a Dog’s Nose Is” Dogs rely on smell far more than we do. While humans experience the world mostly through sight, dogs experience it primarily through their noses. And the difference between our sense of smell and theirs is enormous. Humans have about six million scent receptors in their noses. Dogs can have over two hundred million. And their brains dedicate a much larger area just to processing smells. That’s why dogs can detect things we would never even notice. From hidden drugs and explosives… to diseases like cancer or diabetes. But the real secret behind this incredible ability isn’t just the number of receptors. It’s the design of the dog’s nose itself. How the Nose Actually Works If you look closely at a dog’s nostrils, you’ll notice something interesting. They don’t just face forward like ours. They also curve to the sides. When a dog exhales, air shoots out through these side slits. And those side openings create tiny swirling air currents that actually pull new smells back toward the nose. When a dog inhales, the air inside the nose also splits into two streams. One goes to the lungs for breathing. But another part goes into a special smelling chamber designed to capture scent molecules. So every time a dog sniffs, it’s constantly drawing in fresh smells from the environment. Almost like a conveyor belt constantly delivering new smells into the nose. And dogs can sniff five to ten times per second, continuously updating their picture of the world. Dogs Experience the World Differently And to understand how differently dogs see the world, it helps to compare it to our vision of the world. Because smell works very differently from sight. Light travels incredibly fast and moves in straight lines. That’s why vision feels almost instant to us. But smells behave very differently. They’re made of tiny molecules drifting slowly through the air. They move around corners. They spread through spaces. They stick to surfaces. And they can linger for minutes… or even hours. Which means smells can reveal something that sight cannot. The past. To a dog, a sidewalk isn’t just a sidewalk. It’s a story of everything that happened there earlier.. Who walked here earlier. Which dogs passed by. Whether they were male or female. Healthy or stressed. Information that we simply cannot perceive. The Walk Insight Have you ever wondered why your dog stops during walks and start sniffing one tiny spot on the ground. To us, it looks like nothing. But to them, it can be full of information. Have you ever noticed how focused your dog becomes when they find an interesting smell? When your dog stops to sniff a patch of pee, it’s a bit like us checking social media. Every scent is a message left behind by another dog. Your dog is basically scrolling the neighborhood news. And that’s why constantly pulling your dog forward during walks can be frustrating for them. For us, a walk is about getting from point A to point B. But for dogs, the walk itself is the destination. So sometimes it’s worth slowing down. Let your dog sniff the ground. Let them read those scent messages on the lamp posts and sidewalks. Because for your dog, that is their whole world. And you might be surprised how much happier and more relaxed your dog becomes when they’re allowed to explore the world the way dogs naturally do. A dog bred like a sheep.
A dog dropped into a warzone. A dog forced to power a kitchen fire. Hard to believe. But those were real dog jobs. And those aren’t even the strangest roles dogs were ever given. Some roles were far more unsettling. Let’s start with something almost forgotten. Dogs Bred for Wool One of the most surprising uses of dogs in history is that they were once bred much like sheep. Before sheep were introduced to North America, Indigenous communities needed material for clothing and trade. But they didn’t have sheep. What they did have were small, thick-coated white dogs -- now known as Salish Wool Dogs. These dogs were selectively bred for their dense coats. They were sheared like livestock. Their fur was spun into yarn. Then woven into blankets and garments that carried both economic and cultural value. Salish Wool Dogs eventually disappeared after sheep were introduced to North America. But not every dog with a strange purpose met the same fate. Some of the most unusual working dogs in history still exist today. To find one of them, we have to move to Europe. And to a small dog with a very specific talent. The Kooikerhondje. Duck Luring Dogs In the Netherlands, hunters once built elaborate canal systems designed to trap wild ducks. But those systems depended on something unexpected. Movement. The Kooikerhondje would run along the canal’s edge, while its white-tipped tail flashing in and out of view. Ducks are naturally curious. They would swim closer. And closer. Following the flicker of white deeper into the narrowing canal. Until there was no way back. The dog didn’t chase. It didn’t attack. It didn’t retrieve. It just lured. But not every strange job relied on instinct. Some relied on endurance. And repetition. The Turnspit Dog In medieval Europe, cooking large cuts of meat required constant rotation over an open fire. But there were no electric motors. So kitchens used dogs. Small, long-bodied dogs were placed inside wooden wheels mounted high beside the fireplace. Like a hamster wheel. As the dog ran, the wheel turned a spit. And the meat rotated evenly over the flames. Hour after hour. These dogs weren’t guarding. They weren’t hunting. They were engines. In some kitchens, two dogs were kept -- one to work, and one to rest. Because the fire never stopped. And kitchens weren’t the only places where dogs became machinery. On farms, the same idea was used for something else entirely. Dogs as Farm Engines In rural Europe, butter wasn’t made by hand alone. Churning cream into butter required steady, repetitive motion. And once again, there were no electric motors. So farmers turned to dogs. Small dogs were placed inside wooden treadmills connected to churns. As they ran, the mechanism turned. And cream slowly thickened into butter. Was it cruel? From todays perspective – yes. But it worked. And it was efficient. Fortunately, not every unusual role forced dogs into doing something cruel. Some relied on something far more natural. Their sense of smell. Truffle Hunters Have you ever heard of truffles? They’re considered a delicacy — a rare type of fungus that grows underground, hidden near the roots of trees. You can’t see them. You can’t hear them. You can only smell them. And that’s where dogs come in. For centuries, pigs were used to find truffles. But pigs had a problem. They loved to eat what they found. Dogs, on the other hand, could be trained. Breeds like the Lagotto Romagnolo became specialists. They move slowly through forests, noses close to the soil. Then suddenly — they stop. And indicate the exact spot. No digging frenzy. No chaos. Just scent, refined into skill. Here, dogs weren’t engines. They weren’t machinery. They were and to this day still are - precision instruments. But not every small European working dog was hunting something valuable. Some were guarding something even more practical. Canal Guardians In 17th-century Belgium, trade moved through narrow canals. Cargo boats carried textiles, grain, tools — sometimes goods worth a fortune. And when those boats were docked overnight, they needed protection. Not a large mastiff. Not a war dog. Something smaller. Alert. Fearless. The Schipperke. Its name roughly means “little captain.” These compact black dogs lived aboard barges, guarding cargo and hunting rats that thrived around ports and warehouses. They didn’t look intimidating. But they were loud. Sharp. Relentless. In the tight space of a canal boat, that was enough. They were floating alarm systems. Industrial security, wrapped in fur. But Europe wasn’t the only place where dogs were shaped by harsh environments. Far to the north, survival demanded something very different. Arctic Reindeer Herders Because far north, above the tree line, life looks very different. No cities. No farms. Just snow, wind, and vast herds of reindeer. For Indigenous peoples of the Arctic, those herds meant survival. Food. Clothing. Tools. Transport. But reindeer are not sheep. They are fast. Semi-wild. And capable of scattering across kilometers of open tundra. Managing them required something agile. Resilient. And intelligent. Dogs like the Nenets Herding Laika were bred to control massive herds in brutal conditions. These dogs are not your ordinary herding dog. They work in freezing temperatures. Navigate through blizzards. And responded instantly to subtle commands. No fences. No walls. Just instinct, training, and endless white horizon. And in environment just as cold - dogs would take on another role. A role that does not require herding, guarding or hunting, but searching. Avalanche Rescue Dogs High in the Alps, winter could bury entire paths in seconds. Travelers crossing mountain passes risked being swallowed by avalanches -- disappearing beneath meters of snow. Finding someone buried like that is almost impossible. For humans. But not for dogs. Breeds like the Saint Bernard became legendary for their ability to locate survivors beneath the snow. Their noses could detect faint human scent rising through layers of ice and powder. They worked and sometimes still work with monks and rescue teams, moving across frozen landscapes where a single mistake meant death. Contrary to popular myth, they didn’t carry barrels of brandy. What they carried was far more important. Time. When every minute meant the difference between life and death, a dog’s nose could be the reason someone survived. Here, dogs weren’t tools. They were hope. And for generations, people placed that hope in dogs. Because in earlier centuries, some believed dogs could heal in a very different way. Healing Dogs In medieval Europe, medicine was a mixture of science, faith, and superstition. And dogs were sometimes part of that system. It was believed that a dog’s saliva had healing properties. People would allow dogs to lick wounds, believing it would prevent infection or speed recovery. Today, we know saliva does contain certain antibacterial compounds. But medieval belief went much further. Dogs weren’t just companions. They were seen as living remedies. Symbols of loyalty. Even instruments of divine healing. In art, saints were often depicted with dogs at their side -- not just as friends… But as caretakers. It was a different kind of hope. And as medicine advanced, beliefs turned into science. But dogs remained part of the equation. Canine Blood Donors Today, veterinary hospitals operate much like human ones. Surgeries. Emergency rooms. Intensive care. And sometimes… transfusions. When a dog suffers severe blood loss — from trauma, surgery, or disease -- another dog may be the reason it survives. Dogs donate blood to other dogs. Not symbolically. Not superstitiously. But scientifically. Breeds like the Greyhound are often used as donors. Many have a universal donor blood type. They’re calm. Healthy. And physically well-suited for the procedure. In structured programs, donor dogs are screened, monitored, and cared for. Their blood can save multiple lives. But this wasn’t the first time dogs were asked to save lives. Messenger Dogs During World War I, communication was fragile. Radios were unreliable. Telephone lines were constantly cut by artillery. Messengers crossing open ground were easy targets. So armies turned to dogs. Specially trained messenger dogs carried written messages through trenches and across battlefields. They ran through mud. Through smoke. Through gunfire. Small metal cylinders were attached to their collars, holding critical information. Unlike human couriers, dogs were fast. Low to the ground. And harder to spot. Some delivered messages that redirected troops. Some carried coordinates that saved entire units. And as warfare evolved, so did the demands placed on dogs. Carrying messages was no longer enough. Mine Detection Dogs Because during and after World War II, armies began training dogs to detect explosives by scent. Their noses could identify chemical compounds humans couldn’t perceive. A dog would move slowly across a field. Then stop. Sit. Or freeze in place. That signal meant one thing: Danger beneath the ground. Unlike machines, dogs could adjust to uneven terrain. Unlike metal detectors, they could distinguish explosives from harmless scrap. In war zones — and decades after wars had ended -- mine detection dogs have cleared paths for soldiers, deminers, and civilians. They don’t detonate the mines. They prevent it. And some dogs were brought into even more extreme situations, because they didn’t just walk into danger. They jumped into it. Military Paratrooper Dogs Detecting explosives required patience. But modern warfare demanded mobility. Speed. Surprise. So some military units trained and still are training dogs to parachute alongside soldiers. Strapped securely to their handlers, these dogs leapt from aircraft thousands of feet above the ground. They descended into unfamiliar territory. Into darkness. Into combat zones. Once on the ground, they tracked enemies. Detected explosives. Protected their units. They weren’t mascots. They were operational assets. Highly trained. Highly disciplined. From trenches… To minefields… To the sky itself. The role of dogs in war kept expanding. But there was one program where that expansion crossed a line. Soviet Anti-Tank Dogs During World War II, tanks dominated open ground. Heavy. Armored. Nearly unstoppable. The Soviet military faced a desperate problem. And they turned, once more, to dogs. They trained dogs to run beneath enemy tanks carrying explosives attached to their bodies. The idea was simple. The dog would seek shelter under the vehicle. The charge would detonate. In theory, it was a weapon against armor. In reality, it was chaotic. Training conditions differed from combat. Engines sounded different. Smoke filled the air. Some dogs ran back toward their own lines. Some hesitated. Some never returned. The program was controversial even at the time. And its effectiveness remains debated. But it happened. In that moment, dogs were no longer messengers. No longer rescuers. No longer detectors. They were expendable weapons. CLOSING Dogs didn’t choose these roles. We did. They ran where we pointed. Searched where we sent them. Jumped when we asked. From wool to war, they became whatever we needed. And only recently have they become something else. Retrievers are friendly
Shepherds are smart Hunting dogs are independent But… are they really? Or are those just stories we’ve been repeating for over a century? In the late 1800s, dogs began to be grouped by the jobs they performed. Retrievers. Shepherds. Hunting dogs. Over time, those job titles slowly turned into personality labels. And eventually… into rankings. The smartest breeds. The best family breeds. The most independent breeds. I’ve even made some of those ranking videos on this channel. And, well, they might all be wrong. Because when researchers tested thousands of dogs… those neat categories started to blur. In one large study of over ten thousand dogs… researchers measured how dogs reacted to strangers… to sudden noises… to unfamiliar situations… and how easily they learned new tasks.And what they found was unexpected. Breed group explained surprisingly little about how individual dogs actually behaved. Most of the variation wasn’t between groups. It was within them. In some cases, a Border Collie’s behavioral profile was closer to a Labrador… than to another herding breed. And some Rottweilers showed more similarity to retrievers… than to other working dogs. Two dogs from the same breed could differ more from each other… than from dogs in completely different groups. So what about intelligence? Because that’s where rankings become almost sacred. Every year, dozens of lists declare the “smartest breed.” Border Collies at the top. Herding breeds dominating the charts — Aussies, German Shepherds, Rough Collies. And those rankings are usually based on how quickly dogs learn commands. How many repetitions it takes. How reliably they respond. But when intelligence is tested across large numbers of dogs -- in puzzle-solving tasks, memory tests, and problem-solving challenges -- the differences between breed groups are far smaller than people expect. There is overlap everywhere and maybe you’ve seen this yourself. Some Labradors outperform Border Collies. Some Belgian Shepherds struggle. And within every breed, you’ll find dogs at the top… and dogs at the bottom. Intelligence doesn’t divide cleanly by group -- even though many lists and publications suggest otherwise. So why are we so convinced the rankings are accurate? Psychologists call it confirmation bias. You might even catch yourself doing it. When we expect something to be true… we start noticing the examples that confirm it. If a Border Collie solves a puzzle quickly, we nod. Of course. If a Labrador does the same, we call it impressive. If a Border Collie struggles? We call it an exception. Once a story takes hold, the evidence seems to reinforce it -- even when the bigger picture is far more mixed. And here it gets interesting. Because all of this does not just affect rankings. It affects real decisions. Many people choose a dog based on those labels. “I want the smartest breed.” “I want a calm breed.” “I want an independent breed.” But science suggests you’re choosing a probability… not a guarantee. If you’ve ever been surprised by your own dog’s personality, this might be why.” If your dog doesn’t match the stereotype, that doesn’t mean you chose wrong. It just means your dog is an individual. And sometimes we even excuse behavior because of the label. “He’s stubborn — he’s a husky.” “She’s intense — she’s a working breed.” But not every Husky is stubborn. Not every working breed is hyper. And when a dog doesn’t match the stereotype… owners can feel like something is wrong. Like they chose the “wrong” breed. Mixed-breeds, mutts, street dogs make this even clearer. Without a neat label attached, we’re forced to see the individual in front of us. Breed can influence drives. Energy levels. Instincts. But personality — and even intelligence — are far more individual than categorical. Maybe the most accurate way to understand a dog… is not by its group. But by the dog in front of you. When a dog licks your face, you probably read it the same way everyone does.
A kiss. A sign of love. But what if that interpretation is wrong? Because licking isn’t a human behavior at all. Long before dogs lived with humans, licking already existed. Wolf and wild dog pups lick their mother’s face to stimulate regurgitation. It’s how food is requested. It’s how needs are communicated. Domestic puppies do the same. They lick their mother’s muzzle when they’re hungry or seeking contact. That behavior doesn’t disappear. It changes — and that change explains a lot of what dogs do to us today. When puppies lick humans and receive attention — laughter, petting, eye contact -- they learn something important: licking works When dogs lick faces — human or canine -- it’s often a non-threatening social signal. It communicates:
I mean no harm. With humans, it plays a similar role -- especially when the dog is excited, unsure, or navigating social closeness. This is where many people misread what’s happening. Because labeling licking purely as “love” skips the first step. Affection may follow — but the signal comes first. Dogs don’t separate positive and negative attention the way humans do. Or better to say, most of them will accept almost any attention as a reward in the moment. So if licking makes you: • laugh • talk • react • gently push them away • or simply say their name it still counts as engagement. That’s why licking often becomes persistent. Not because the dog is “obsessed,” but because the behavior has been reinforced over time. In simple terms: attention keeps licking alive. Licking isn’t only outward communication. Sometimes, it’s something else entirely. For some dogs, licking releases endorphins. It helps them calm themselves. That’s why anxious or overstimulated dogs may lick:
It’s slower. More focused. And harder to interrupt. When you see this, the dog isn’t seeking affection or attention from you. You’re watching a dog soothe itself. This is the part most videos ignore. Sometimes, licking is not invitation at all -- it’s a request for distance. When licking becomes forceful — especially alongside: • head turning • stiff posture • dilated pupils • a tucked tail it can signal discomfort rather than affection. Behaviorists call this “kiss to dismiss.” The dog is trying to resolve tension without escalation. This is especially important around:
And yes — taste and smell matter as well, because sometimes licking has nothing to do with emotion or affection at all. Human skin is full of information. Salt from sweat. Food particles. Tears. Bacteria. Hormones. Dogs experience the world through scent and taste far more than sight. So yes -- sometimes licking is about flavor. For example my own dog will always lick my hands when they are sweaty. It’s a completely normal response to salt and scent. But reducing licking only to taste misses the bigger picture. So let’s come back to the original question. Are dog licks kisses? Not in the human sense. Licking is not symbolic affection. It’s not emotional translation. It’s behavior. Communication. Regulation. Sometimes affection is part of it. Sometimes it isn’t. And once you understand that difference, the behavior becomes clearer -- and so does the relationship. |