Generations of selection for tameness have favored more juvenile and submissive traits that were pleasing to humans.

一代又一代的驯服选择倾向于更幼稚和顺从的特性，这是人类所喜欢的。

These findings suggest that there are commonalities in the genetics behind canine tameness and Williams-Beuren syndrome in humans.

这些发现表明，犬类的温顺性和人类的威廉姆斯-博伊伦综合症背后的遗传学存在共性。