Corvids include ravens, jays, crows and magpies.

鸦科包括渡鸦、松鸦、乌鸦和喜鹊。

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So what does the test tell us about corvids or chimpanzees?

那么关于鸦科动物和黑猩猩的实验告诉了我们什么呢？

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Because corvids have these other cognitive skills, researchers wanted to see if they were also capable of mirror self-recognition.

因为鸦科动物有其他的认知技能，研究人员想看看它们是否也有镜像自我识别的能力。

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Scientists have found that corvids are, indeed, particularly clever.

ECONOMIST: Ethology