在一些人的心目中,乌鸦因为其浑身乌黑及其叫声难听而被人们视为不祥之物,但近来许多科学家的研究表明,乌鸦是鸟类中的“爱因斯坦”,它们甚至比狗和猿猴都要聪明。科学家们观察研究后发现:乌鸦会把核桃扔到马路上,让汽车替它们把壳压碎,再吃壳里的核桃仁;乌鸦的记忆力也很惊 In some people's minds, crows are regarded as ominous because of their darkness and their unpleasant sounds. However, many recent studies by scientists show that crows are “Einstein” in birds and even more than dogs And apes are smart. Scientists observed the study found that: crows will throw the walnut on the road, let the car crush the shell for them, and then eat the walnut shell; crow's memory is also shocking