One of the most daunting parts of owning a dog is figuring out how to train it.
Trainability, or a dog’s ability to learn from humans, has often been linked to its intelligence. Of course, it’s important to remember that all dogs are different and may have personality traits that aren’t stereotypical of their breed. But it can be a very helpful and telling correlation.
In "The Intelligence of Dogs," University of British Columbia psychology professor Stanley Coren examined rankings from dog obedience judges of 110 breeds. Using that information, we then looked at the least intelligent dogs by obedience intelligence.
The breeds that make up this list are sorted by tiers, starting at "fair" and going down to "lowest degree of working." They are further sorted by overall intelligence.