Not even our closest relatives among the apes possess such decided lateral asymmetry, as psychologists call it.

就连我们的近亲猿都拥有这种确定的横向不对称性，如心理学家所说的那样。

youdao

Perhaps not, according to a recent study, which showed that songbirds may also communicate using a sophisticated grammar—a feature absent in even our closest relatives, the nonhuman primates.

可能并非如此。最近一项研究显示鸣禽交流也有用复杂的语法，这特征在我们最近的亲戚——其它灵长类——身上也不曾有过。

youdao

Perhaps not, according to a recent study, which showed that songbirds may also communicate using a sophisticated grammar-a feature absent in even our closest relatives, the nonhuman primates.

可能并非如此。最近一项研究显示鸣禽交流也有用复杂的语法，这特征在我们最近的亲戚——其它灵长类——身上也不曾有过。

youdao

As an antidote to this picture, he offers plenty of evidence of apparently selfless sacrifice, unforced sympathy, co-operation and even a keen sense of fairness in our closest animal relatives, who evolved to reap the benefits of mutual aid.

ECONOMIST: The evolution of empathy