translation.en: So we know that these crows are really smart, but the more I dug into this, the more I found that they actually have an even more significant adaptation.
translation.zh: 以上说的无非是要证明乌鸦是非常聪明的， 但我研究得越是深入， 越是觉得它们的智慧要比我们想象的高出一个层次。