Does breed decide your dog’s personality?
Breed explains less of a dog’s behavior than most people think. Here is what research says about dog personality, and why your individual dog matters most.
Ask people to describe a Labrador or a Border Collie and they’ll give you a personality, not just a look. But how much of your dog’s personality really comes from their breed?
Breed explains only a small slice
In 2022, researchers combined owner surveys about more than 18,000 dogs with DNA data from about 2,000 of them. They found that breed explained only about 9% of the variation in individual dogs’ behavior. Some traits, like how easy a dog is to direct, were more linked to breed than others, but for most everyday behavior, the individual dog mattered far more than the label.
Morrill, K., et al. (2022). Ancestry-inclusive dog genomics challenges popular breed stereotypes. Science.
That’s why a quiz about your dog, rather than their breed, can be surprisingly useful.
What dog personality looks like
A widely cited 2005 review of 51 studies on dog personality found that most of the traits researchers measured could be grouped into a handful of broad dimensions, including reactivity, fearfulness, activity, sociability, responsiveness to training, submissiveness, and aggression.
Jones, A. C., & Gosling, S. D. (2005). Temperament and personality in dogs (Canis familiaris): A review and evaluation of past research. Applied Animal Behaviour Science.
Tailtype’s four dimensions are a simplified, everyday version of these:
- Energy (Zoomie ↔ Chill) reflects activity level.
- Social (Social ↔ Independent) reflects sociability with people and dogs.
- Curiosity (Explorer ↔ Homebody) reflects how a dog responds to new places and things, the flip side of fearfulness.
- Attitude (Diplomat ↔ Boss) reflects responsiveness to training and how strongly a dog prefers their own way.
Personalities change over time
A study of more than 1,600 dogs found that dog personality shifts across their lifetime, much like ours, and that dogs’ traits were linked to their owners’ personalities too. Puppies and seniors often score differently from the same dog in midlife, so it’s worth retaking the quiz every year or two.
Chopik, W. J., & Weaver, J. R. (2019). Old dog, new tricks: Age differences in dog personality traits, associations with human personality traits, and links to important outcomes. Journal of Research in Personality.
What to do with your result
Use your dog’s type as a starting point for small, practical changes: more sniff walks for an Explorer, alone-time practice for a Social dog, short and fun training for a Boss. And remember: a sudden change in behavior is a reason to check in with your vet.