A 2017 study showed that hypersocial dogs have structural changes in genes responsible for Williams-Beuren syndrome in humans. It speculates that this is what m

A 2017 study showed that hypersocial dogs have structural changes in genes responsible for Williams-Beuren syndrome in humans. It speculates that this is what might have allowed domestication. https://advances.sciencemag.org/content/3/7/e1700398 https://advances.sciencemag.org/content/3/7/e1700398 https://ghr.nlm.nih.gov/condition/williams-syndrome https://ghr.nlm.nih.gov/condition/williams-syndrome