líng / zhǎng / lèi / shì / dòng / wù / jiè / lǐ / zhì / lì / shuǐ / píng / zuì / gāo / de / lèi / qún / zhī / yī

灵长类是动物界里智力水平最高的类群之一。

Primates are one of the groups with the highest intelligence in the animal kingdom.