I learned recently that dogs have been found to have mutations that are equivalent to a genetic mutation in humans that would make a person more sociable and less intelligent.
I read about that too.  I wonder why that is?
Origin of the domestic dog
The origin of the domestic dog includes the dog's evolutionary divergence from the wolf, its domestication, and its development into dog types and dog breeds. The dog is a member of the genus "Canis", which forms part of the wolf-like canids, and was the first species and the only large carnivore to have been domesticated. The dog and the extant gray wolf are sister taxa, as modern wolves are not closely related to the population of wolves that was first domesticated.
Adaptive mutation
Adaptive mutation is a controversial evolutionary theory. It posits that mutations, or genetic changes, are much less random and more purposeful than traditional evolution. There have been a wide variety of experiments trying to prove (or disprove) the idea of adaptive mutation, at least in microorganisms.
Definition.
The most widely accepted theory of evolution states that organisms will diversify based on natural selection where changes caused by mutations improve the organism's chance of survival. Adaptive mutation states that rather than mutations and evolution being