Where These Myths Come From
Many of the most persistent pet training myths share a common origin: ideas developed before modern behavioral science, then amplified through popular media, word of mouth, and decades of repetition. Some, like dominance theory, began as legitimate scientific hypotheses that were later revised — but the original version stuck in popular culture long after researchers moved on.
Others reflect a misapplication of human logic to animal cognition. We instinctively want to believe that pets think the way we do — that a dog "knows" it misbehaved, or that a cat is being "stubborn" on purpose. Understanding how animals actually process cause and effect is foundational to training that works. This article walks through the most widely believed misconceptions and what evidence-based animal behavior science actually supports.
For a broader look at how new owners often stumble during their first year with a pet, see why new pet owners struggle in the first year.
Myth
You must establish dominance over your dog to be seen as the 'alpha' — otherwise your dog will try to control you.
Fact
The dominance or 'alpha wolf' model has been substantially discredited. Dogs are not constantly competing for pack rank with their human families.
The dominance framework was largely extrapolated from early studies of captive wolves, which themselves have since been reanalyzed. Wolves in the wild operate in family units, not rigid dominance hierarchies. Dogs, having co-evolved with humans over thousands of years, form cooperative social relationships — not dominance contests. The American Veterinary Society of Animal Behavior (AVSAB) has issued position statements cautioning against dominance-based training, noting it can increase fear, stress, and reactive behavior. Focusing on clear communication and rewarding desired behaviors is both more humane and more effective.
Myth
Punishing a dog firmly and consistently is the fastest way to stop unwanted behavior.
Fact
Research consistently shows that punishment-based methods often increase fear and can escalate aggression, while doing little to teach the pet what it should do instead.
Punishment can suppress a behavior in the moment, but it does not teach an alternative. The animal learns what to avoid, not what to do. Peer-reviewed studies — including a widely cited 2009 survey published in the journal Applied Animal Behaviour Science — found that aversive training methods were associated with higher rates of aggression toward owners and strangers compared to reward-based approaches. Positive reinforcement (rewarding the behavior you want) is documented to produce more durable learning outcomes with lower stress for the animal.
Myth
You can't teach an old dog new tricks — older pets are too set in their ways to learn.
Fact
Adult and senior pets are fully capable of learning new behaviors. Age is not a reliable barrier to training success.
This saying persists culturally, but it does not reflect how animal learning works. Neuroplasticity — the brain's ability to form new connections in response to experience — continues throughout life in mammals. What older pets may need is a training approach adjusted for any sensory changes (reduced hearing or vision) and patience with slower processing. Veterinary behaviorists routinely train adult and senior animals successfully. In some cases, adult dogs can be easier to train than puppies because they have longer attention spans and have outgrown impulsive puppy behavior.
Myth
Rubbing your pet's nose in an accident teaches them not to have accidents indoors.
Fact
This method does not communicate what you intend. Pets cannot connect the correction to an event that may have happened minutes or hours earlier.
Animals learn most effectively when a consequence — positive or negative — follows a behavior within seconds. A pet that is scolded after an accident has already moved on cognitively; they are reacting to your current tone and body language, not recalling the earlier act. The likely outcome is a pet that becomes anxious in your presence, learns to eliminate in hidden spots, or associates coming to you with punishment. Consistent, proactive supervision combined with prompt reinforcement when the pet eliminates in the correct location is far more effective.
Myth
Cats cannot be trained — they are independent animals that simply do not respond to human instruction.
Fact
Cats can learn a wide range of behaviors through positive reinforcement, including commands, agility tasks, and litter habits.
The idea that cats are untrainable is largely a cultural assumption, not a biological one. Cats are highly motivated by food rewards and can be taught to come when called, use a scratch post on cue, tolerate nail trims, and even perform agility tasks. The key difference is that cats tend to disengage when they are not motivated — meaning sessions should be short, always end on a positive note, and use high-value rewards. Clicker training (pairing a click sound with a reward) works as effectively with cats as with dogs, and is widely used in shelter enrichment programs.
Myth
A dog that shows aggression during training is being dominant and must be corrected firmly.
Fact
Aggression during training is almost always a stress or fear response, not a power play. Responding with force typically worsens the problem.
Growling, snapping, or stiffening are communication signals. A pet displaying these behaviors is indicating discomfort or fear — they are not making a calculated bid for social control. Responding with physical correction or forceful handling suppresses these warning signals without resolving the underlying cause. This is particularly concerning because it can lead to a pet that skips warning signals entirely and escalates to biting without apparent warning. If your pet shows aggression during training, the appropriate step is to pause and consult a certified veterinary behaviorist or a trainer credentialed by the International Association of Animal Behavior Consultants (IAABC).
What the Evidence Actually Supports
73%
Of owners using aversive methods reported problem behaviors
A study in Applied Animal Behaviour Science found owners using punishment-based techniques reported higher rates of aggression and fear responses in their dogs than those using reward-based methods.
6–12 weeks
Optimal socialization window for puppies
Veterinary behaviorists identify early socialization as one of the highest-impact factors in long-term behavioral health, according to AVSAB guidelines.
The scientific consensus has been moving toward reward-based, low-stress training methods for over two decades. Organizations including the American Veterinary Medical Association (AVMA) and the AVSAB recommend approaches rooted in positive reinforcement — rewarding the behavior you want to see more of — as the most humane and effective starting point for pet training.
That does not mean these methods are effortless or require no skill. Timing, consistency, and understanding what motivates your specific animal all matter. But the foundation — building a relationship where the animal wants to cooperate because it predicts good things — is supported by behavioral science in a way that punishment-based frameworks are not.
Choose Trainers Carefully
The pet training industry is largely unregulated in the United States — anyone can call themselves a trainer regardless of credentials or methods. Before working with a trainer, ask specifically what methods they use and whether they adhere to any professional code of ethics. Avoid anyone who relies primarily on choke chains, prong collars, shock devices, or physical intimidation as their standard approach. Look for trainers credentialed through the Certification Council for Professional Dog Trainers (CCPDT) or the IAABC.
If training is not progressing, or if your pet shows behavioral challenges like persistent aggression, extreme fear, or compulsive behaviors, seek help from a credentialed professional. Look for a Diplomate of the American College of Veterinary Behaviorists (DACVB) or an IAABC-certified trainer rather than relying solely on advice from informal sources. You can also explore general pet care foundations at our Pet Care Basics hub.
This article provides general educational information about animal training methods and is not a substitute for advice from a qualified veterinary or animal behavior professional. Consult a licensed veterinarian or certified behaviorist for guidance tailored to your specific pet's needs.
