Evidence-based canine behaviour and welfare

Trigger stacking is taught everywhere in dog training. There is no canine study of it, and its best-known number turns out to have no source at all.

Flat-faced dogs are less healthy - the epidemiology is clear. What is contested is which measurement predicts risk, and why demand keeps rising anyway.

Can you calm an anxious dog by changing its food? The question is reasonable, the recommendations are everywhere, and most of them rest on an argument that sounds compell…

A dog learns two new commands, then sleeps for three hours with electrodes on its head, and afterwards performs better than it did before. That sentence describes an actu…

Floppy ears, white patches, a curled tail, a shortened muzzle, reduced aggression, extended juvenile behavior. The claim that domesticated animals converge on this packag…

A dog lunges at strangers, guards the sofa, or cannot be recalled once another dog appears. Somewhere in the conversation that follows, someone suggests castration — and…

The owner comes home, sees the chewed shoe, and the dog is already doing it — head low, ears back, tail tucked, eyes turned away. The conclusion is immediate and feels un…

A dog presses itself into the gap behind the sofa on New Year's Eve, shaking, panting, unreachable. The owner sits nearby, blinds closed, radio on, and does the thing tha…

A dog bites a visitor in the hallway. The owner says it came out of nowhere, that the dog has never done anything like it, that he is not an aggressive dog. All three sta…

A bowl sits halfway between two places a dog knows well. On the left, bowls have always contained food. On the right, they have always been empty. The dog has never seen…

Two owners take the same advice for the same problem. Both expose their dog to the thing it fears, gradually, repeatedly, with food. After six weeks one dog is calmer. Th…

A dog treated successfully for its fear of the vacuum cleaner is calm around it for months — then panics again after a house move. Nothing was untrained. The fear had nev…

One dog walks straight up to the new object in the garden. Another stops at four metres, looks, circles, looks again, and approaches thirty seconds later. Both eventually…

Some dogs cannot stay with a task for thirty seconds. Some cannot settle in a room where nothing is happening. Some cannot wait, ever, for anything. Owners describe all t…

A dog checks the same spot on the counter every evening, months after the food stopped being left there. Another abandons a puzzle after two attempts and looks at its own…

A dog stops trying. It no longer offers behaviors during shaping, no longer investigates novelty, no longer attempts a problem it once solved. To an owner it may look lik…

Two dogs receive exactly the same treat for exactly the same behavior. One gets it every time; the other gets it unpredictably, on average every fourth repetition. After…

A dog watches another dog work out a puzzle and solves it faster afterwards. A puppy hangs back from a novel object until its owner approaches it calmly. A dog trained on…

A dog that wants to greet a visitor but crouches with its tail tucked. A dog that starts toward a novel object and stops mid-step. A dog lunging at the end of a lead towa…

The idea that dogs continually test humans for rank, and that owners must physically assert authority to keep order, has outlasted the evidence that produced it by severa…

What does it mean to call a dog aggressive? Does a single growl qualify? A stiff posture without sound? Is a dog fearful when it tucks its tail, or only when it flees? Th…

A dog wags its tail. Happy? A dog lies still on its bed. Relaxed? A dog stops barking after a correction. Calm now? These readings feel automatic, and they rest on an ass…

A dog that stopped jumping on visitors weeks ago jumps on the first guest after a quiet fortnight. A dog that had made peace with the vacuum cleaner hides from it again a…

A treat that arrives when none was expected teaches more than the same treat delivered on schedule. A reward that fails to arrive when the dog was certain of it produces…

A dog that performs a flawless recall in the garden cannot hear its name fifty metres from another dog. A dog that takes food gently at home will not touch a sausage at t…

Why does a dog offer a flawless sit for a visible treat and ignore the same cue when a squirrel crosses the path? Why do some dogs seem to seek out training sessions whil…

Most owners read impulsive behavior as a training gap. A dog lunges at another dog, bolts after a squirrel, or cannot settle in an exciting place, and the conclusion is t…

A dog that sits reliably in the living room lunges and barks at a passing dog on the street. A dog that holds a long down at home trembles and hides when visitors arrive.…

A dog's behavior is not solely the product of training, breed, or personality. Beneath every learned cue, every emotional outburst, and every moment of calm runs a comple…

Attachment theory offers a robust framework for understanding the emotional bond between dogs and their people. Domestic dogs display all four hallmarks of a true attachm…

Frustration is something nearly every dog owner has watched unfold: the paw slapping the food bowl during a delayed meal, the desperate barking when a longed-for playmate…

For decades, testosterone has been cast as the primary driver of canine aggression – a hormonal switch that, once flipped, turns a calm dog dangerous. This narrative has…

Anxiety is one of the most common drivers of behavioral problems in dogs. Separation distress, noise phobias, and generalized anxiety affect a large share of the canine p…

A litter of eight-week-old puppies wrestles for four minutes, breaks off, and falls asleep in a heap. Almost everything written about that scene is an inference. That pla…

Breed labels are the shorthand of dog culture. Border collies are "trainable," terriers "feisty," certain molossers "protective" or "aggressive," and these expectations s…

Aging brings gradual neurobiological change across mammals, but in dogs a subset of individuals develops something beyond normal aging: a pathological condition called Co…

The communicative relationship between humans and dogs is a genuinely unusual case of interspecies social cognition. Unlike most animals, dogs are not merely sensitive to…

Among the senses that shape the behavior of the domestic dog, olfaction is the undisputed dominant channel. Where humans lean on vision, the canine brain is built to prio…

Behavioral problems in dogs are often framed as issues of training, socialization, or environmental stress, and aggression, restlessness, hypervigilance, or a sudden loss…

For many owners, a sleeping dog is simply a resting dog – sleep read as a passive pause, a period of physical recovery and quiet. From a neurobiological standpoint it is…

For decades, trainers, breeders, and veterinarians have known that the first weeks of a puppy's life carry outsized weight. The sensitive period – often loosely called th…

Few questions in canine behavioral science provoke as much debate – or as many knowing nods from owners – as whether dogs feel jealousy. The scene is familiar: one dog ge…

In veterinary behavioral medicine, aggression, irritability, and sudden behavioral change are often approached as behavior problems first and medical problems second – or…

Over the past decade, the gut–brain axis has moved from the fringes of neuroscience to its center, reframing the gastrointestinal tract and the brain as one continuously…

In canine training and behavioral medicine, few topics are as polarizing as the use of aversive methods. Their defenders point to rapid, visible suppression of unwanted b…

Two dogs of the same age can be biologically very different, and telomeres are one of the few ways that difference becomes measurable. The idea that follows is attractive…

Dogs are extraordinary readers of human emotion. Thousands of years of living alongside us have tuned them to our gestures, faces, voices, and moods, and a large literatu…

Separation-related problems are among the most common reasons dogs are brought to behavior professionals, and among the most misread. A dog that howls, shreds the doorfra…

The use of punishment and aversive tools in dog training – shock collars, prong and choke chains, harsh physical corrections, intimidation – has been argued over on scien…

Two dogs bark and lunge at the end of the lead when another dog appears fifty metres away. One is trying to make it go away. The other is trying to get to it. The outburs…

When we train a dog to sit for a treat, the behavior reliably produces a reward. But does the dog understand why it works – or is it simply repeating a reinforced associa…

We know dogs react to the world. The harder question is whether they can, in any sense, reflect on the contents of their own minds – whether a dog can register that it la…

A breeder pairs two dogs, neither of which shows any merle pattern, and produces a litter containing a mostly white puppy that is deaf in both ears. Nothing about the par…

You punish the growl, and tomorrow it comes back louder. You comfort the trembling, and the fear does not fade. You have tried training, corrections, maybe a different tr…

Dogs are cleverer than the "just an instinct-driven animal" caricature allows, and decades of research have made that case convincingly. They read human communication wit…

Oxytocin, a nine–amino-acid neuropeptide synthesized in the hypothalamus, is frequently invoked to explain the closeness of the dog–human relationship. A growing body of…

Epigenetics describes how environmental factors and individual experiences can influence gene activity without changing the DNA sequence itself. Where classical genetics…

A dog's behavior is not random. It emerges from the interplay of neural, hormonal, and experience-based processes, and over the past two decades neuroscience has begun to…