Conventional animal breeding should be able to meet much of the anticipated doubling of demand for dairy and meat products in Asia and sub-Saharan Africa, but this may not be enough.

传统的动物养殖应该能够满足亚洲和撒哈拉沙漠以南非洲地区预计将翻一番的奶制品和肉产品的大部分需求，但这可能还不够。

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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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Yet a number of animal experiments in recent years have challenged conventional thinking on heredity, suggesting that something more is at work.

然而，近年来的大量动物实验表明，还有一些其他的东西参与了遗传，这对上述传统观念提出了挑战。

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And Goldstein is beginning to get referrals from conventional vets--including the Animal Medical Center, New York City's well-known--and conventional--animal hospital.

FORBES: Miracle Worker

This third way is to insert their genes into another, more conventional virus instead of a traditional animal host.

ECONOMIST: Foulpox