There is no reason to believe there's some special moment

那些什么特别时刻是没有道理的
or special five minutes or special hour.

什么特别五分钟或是特别一小时
It's just in the fullness of time

只是在适当的时间
babies will develop an attachment

婴儿会对于他们
to the animal that's closest to it.

最亲近的人产生依恋
They will recognize it as, at an implicit level,

他们会以暗示的方式
at an unconscious level, as their kin.

下意识地将那个人视作他们的亲属
Well, how does this work?

那么这是怎样形成的呢
How does the baby's brain develop--

婴儿的大脑是怎样形成
come to develop an emotional attachment to that creature?

一种对那个生物的情感依赖呢
Well, you remember from Skinner

你们记得斯金纳[行为主义心理学家]
that operant conditioning could provide a good answer to this.

他的操作性条件理论会作出很好的解答