The reason whyprimates are intelligent, according to Dr Humphrey, is that they generally livein groups.

依照Humphrey博士的说法，灵长目动物聪明的原因在于它们通常群居生活。

youdao

The reason whyprimates are intelligent, according to Dr Humphrey, is that they generally livein groups.

依照Humphrey博士的说法，灵长目动物聪明的原因在于它们通常群居生活。

youdao