原文已被隐藏，你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.
该句暂无译文！
2 .Living deep underground ain't easy.
该句暂无译文！
3 .In addition to hellish temperatures and pressures, there's not a lot to eat.
该句暂无译文！
4 .Which is why oil reservoirs are the microbes' cornucopia in this hidden realm.
该句暂无译文！
5 .Microbes feast on many oil reservoirs, but it has been unclear how the micro-organisms got to those locales.
该句暂无译文！
6 .One proposal has been that the microbes colonize a pool of dead algae corpses and then go along for the ride as the pool gets buried deeper and deeper and the algae slowly become oil.
该句暂无译文！
7 .That's the so-called "burial and isolation" hypothesis.
该句暂无译文！
8 .But under that set of rules each pool of oil should have its own unique microbes, and that's not the case, according to a recent study in the Journal of the International Society for Microbial Ecology.
该句暂无译文！
9 .Researchers surveyed the genetics of oil-eating microbes from around the world.
该句暂无译文！
10 .They found that populations from Nevada to the North Sea matched up almost exactly.
该句暂无译文！
11 .They also determined that microbes in the North Sea appear to have swapped genes with Japanese microbes despite the locations being more than 8,000 kilometers apart on the Earth's surface.
该句暂无译文！
12 .These findings suggest that the deep biosphere is actually filled with connections,
该句暂无译文！
13 .and that microbes move from one oil reservoir to another, colonizing them almost as soon as they form in some cases.
该句暂无译文！
14 .Or it could also be that marine microbes migrate down and then evolutionary selection pressure causes a convergence in the genetics that make it possible to survive under these extreme conditions.
该句暂无译文！
15 .One thing is certain, humanity is now definitely helping this mixing of subsurface microbes, as our thirst for oil leads us to poke holes all over the planet.
该句暂无译文！
16 .Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.
该句暂无译文！