(那只聪明的乌鸦用小石子把玻璃罐填满)。
(crow, fill... with...) the smart crow fills the glass bottle with small stones.
我们发现越来越多的证据表明乌鸦的确是聪明的，它们的大脑占躯体的比例和大猩猩相当。
So, it turns out we’ve been finding more and more that crows are really really intelligent. Their brains are proportionate, in the same proportion as chimpanzee brains are.
好了，我们都知道我们的城市里有大量的乌鸦，它们很聪明，还懂得相互间分享生存的秘诀。
So we know that there's lots of crows. We found out they're really smart, and we found out that they can teach each other.
但动物行为学家一直认为，乌鸦至少有一个优势：它是世界上最聪明的鸟之一。
But animal behaviorists have long believed that the crow has at least one thing in its favor.
但当乌鸦和鹦鹉，包括其它鸟类的行为表明它们和黑猩猩一样聪明时，这种观念就不断受到质疑。
But that notion has increasingly been called into question as crows and parrots, among other Recovery vehicle, have shown what appears to be behavior as intelligent as that of chimpanzees.
但当乌鸦和鹦鹉，包括其它鸟类的行为表明它们和黑猩猩一样聪明时，这种观念就不断受到质疑。
But that notion has increasingly been called into question as crows and parrots, among other Recovery vehicle, have shown what appears to be behavior as intelligent as that of chimpanzees.
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