科研之友
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摘要
<正>家马是由野马驯化而来的，但是马最早是在何时何地被人类驯化的就没人知道了。最近，科学家终于找到了这个问题的答案。People have relied on the modern domestic horses to plow fields (犁地),travel long distances for millennia and so on. Horses have transformed human societies with every step. But scientists have struggled to answer the seemingly simple question of when and where these animals were domesticated.
