[wswope]

Adding on to this, there’s evidence that domestication involved selecting for genetic abnormalities in dogs that are analogous to Williams Syndrome in humans, a disorder which is known to cause pro-sociability, a strong sense of empathy, and relatedly, anxiety.

I’d argue we have pretty good evidence that the emotional processing of dogs has been dramatically altered by domestication.

https://www.insidescience.org/news/rare-human-syndrome-may-e...