科学家们惊奇的发现南极冰层下面”红色河流“附近还有细菌生命体存在的迹象。
Scientists find surprising evidence of bacterial life beneath the Antarctic ice near Blood Falls, seen here.
发现了迄今为止可证明火星曾存在细菌生命体的最有说服力的证据。 研究小组称，他们在…
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接着，他一个接一个地把细菌的基因去除，看看那些是不必需的，想做出一个更小的生命体并用来做合成的模型。
He then knocked out the bacterium's genes one by one to see which it could live without, in the hope of making a yet smaller organism he could then use as a model for synthesis.
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