某些研究暗示，大多数雪晶的核也许是腐朽的植物、细菌或菌类孢子；因此，也许雪大都是由生命触发的。
Some studies hinted that a majority of nuclei in snow crystals may be decayed vegetation, bacteria, or fungi spores; and so snow may be largely life-triggered.
一些研究者认为，海低沉积物里的细菌是由微生物的纳米线网络连接起来的。
Some researchers believe that bacteria in ocean sediments are connected by a network of microbial nanowires.
再往远处想想，当年治疗胃溃疡的办法莫衷一是，直到澳大利亚的一位研究人员发现胃溃疡是由细菌引起的。
Further afield, stomach ulcers were treated in many ways, until a lone Australian researcher showed they are caused by bacteria.
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