这些品种保存在北京动物园里。

Some specimens are kept in the Beijing Zoo.

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肉品风味受品种、营养状况、烹调方法和保存方法的影响(如烟熏或腌)。

Meat flavour is affected by type of species, diet, cooking method and method of preservation (e.g. smoked or cured).

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1859年，达尔文的认知和论据让他完成了“物竞天择来获得物种起源，或是生命斗争中，保存了优等品种。”

In 1859, Darwin's perception and evidence became "on the Origin of Species by Means of Natural Selection, or the Preservation of Favored Races in the Struggle for Life."

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