But perhaps no animal has done more to upend conventional notions than Alex, an African gray parrot.

但是，或许没有其它动物比alex，一只非洲灰鹦鹉，更加颠覆了传统观念。

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Asian elephants are gray but darker than their African Cousins. Most African elephants have tusks, ears, and a trunk bigger than the Asian elephants have.

亚洲大象为灰色，但比它们的非洲同类的颜色要深一些。大多数的非洲大象的象牙、耳朵和鼻子都比亚洲大象的大。

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Feather picking in African greys may be linked to a deficiency of the amino acid arginine, and the presence of red feathers where gray ones would normally appear may be due to a deficiency of lysine.

缺乏氨基酸精氨酸可能导致拔毛，而红色羽毛的出现可能因为缺乏赖氨酸。

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By the same token, displays of evident affection on their parts and extraordinary tales of the conscience and loyalty of Balto, for example, or the miraculous intelligence of Alex the African gray notwithstanding, most nonhuman animals don't really feel the same way about us.

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African-American women with natural hairstyles, men with dreadlocks and Baby Boomers with gray hair are not the only ones leaving job interviews questioning whether their hair just cost them a job.

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Jackson, Gray, Jordan and Thomas have one other thing in common: All are African-Americans.

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