Day 31
Researchers conducted owner surveys for 18,385 dogs and sequenced the genomes of 2,155 dogs. They found that breed is essentially useless for predicting a dog’s behavior.
One of the clearest findings is that breed has no discernible effect on a dog’s reactions to something it finds new or strange. This behavior is what a nonscientist may see as innate aggression and would seem to cast doubt on breed stereotypes of aggressive dogs.
So, Labrador retrievers are not necessarily lovers; pit bulls aren’t predisposed to fight.
This is not to say that there are no differences among breeds or that breed can’t predict some things. (Border collies, for instance, may be easier to train; Siberian huskies seem more likely to howl.) But the genes that shape dog behavior predate modern breeding, which mostly focuses on appearance. Looks, it seems, matter less than we think."