This phenomenon of selecting traits associated with youth is known as neoteny, and can be seen in many domestic animals.

这种择与青年有关的性状的现象被称为幼，多家畜中都可以看到。

We want to learn and understand, partly to make sense of the world but also because of something called neoteny.

我们想要学习，一方面是为了这个世界，另一方面也是因为一种叫做“幼持续”的东西。

This staying young strategy is called neoteny, which literally means holding youth.

这种保持年轻的状被称为幼持续，字面意思就是保持年轻。