It is a pleasant thing to behold the tameness of animals.

看见一头驯服的野兽是一件有趣的事。

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

一代一代地为了驯化的选择，保留了很多幼嫩而温顺的特征来取悦人们。

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

这些发现表明，在犬科动物的温顺和威廉斯综合症背后，存在着一些遗传共性。