What about the lower animals?

低等动物怎么办呢？

Higher animals are evolved from lower animals.

动物是由低等动物进化而来的。

The ability to talk distinguishes human beings from lower animals.

语言能力把人和其他低等动物区别开来了。

If this is the true standpoint, the lower animals appear to enjoy a happier destiny than man.

如果这是正确的立场，低等动物似乎享有比人类更幸福的命运。

These adjectives apply to what is more characteristic of lower animals than of human beings.

这些形容词都表示具有较低等动物而不是人的特征的。