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Researchers offered two explanations for the advantage. Because most crabs are right-handed, they said, cracking into a shell that opens on the opposite side might be more difficult.
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对于“左撇子”蜗牛具有的这种生存优势，研究人员给出了两种解释。他们说，第一，由于大多数的螃蟹都是“右撇子”，因此它们撬开并伸进一个朝反方向张开的蜗牛壳里，可能难度要更大一些。 |
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Researchers originally suggested that Microraptor spread both arms and legs to the sides of its body to form two pairs of gliding wings.
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研究人员最初认为，顾氏小盗龙从身体两侧伸展出前肢与后肢，形成两对滑行翼。 |
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Researchers plan to evaluate the likelihood of panspermia by studying whether microorganisms can survive an interplanetary journey.
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研究人员打算研究：微生物是否可以在星际旅行中存活，并据以评估胚种说存在的可能性。 |
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Researchers put markers atop the ice field blocks in 1962 and Thompson said measurements using satellites show the summit of the ice has been lowered by about 56 feet in 40 years.
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汤普逊说，1962年研究者在冰层上做了标志，现在发现，山顶的积雪厚度在40年中下降了56英尺。 |
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Researchers recently videotaped couples in Paris and London cafes and counted the number of times touched each other in one hour.
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研究人员最近对在巴黎和伦敦咖啡馆中的情侣们摄了像，并计算了他们在一个小时中相互触摸的次数。 |
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Researchers recommend checking references and administering personality tests to weed out those who are really low on agreeableness and emotional stability.
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他们建议，可以通过审核应聘人员推荐信和进行人格测试的方法来剔除那些“不合群、情绪不稳定”的候选者。 |
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Researchers removed the testes of young adult male mice and over several months, treated some with a testosterone hormone and others with a placebo.
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研究者切除了一些年轻成年雄性小鼠的睾丸，几个月后，用睾酮激素治疗其中一部分，另一部分为安慰剂组。 |
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Researchers said the findings were partly related to better education and higher occupational social class, but it remained statistically significant after adjusting for these factors.
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研究人员说，这有一部分和更好的教育及更高的职场社会阶级有关，但在经过这些因素调整后，这些统计数字仍是有意义的。 |
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Researchers said the zircon's high level of heavy oxygen isotopes suggest it was cooled by surface water after it formed.
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研究人员说锆石的高标准重氧同位素暗示了它形成之后靠地表水来冷却。 |
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Researchers said these differences may have a basis in evolution in which females developed a preference for reddish colors associated with riper fruit and healthier faces.
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研究者称这些区别可能基于进化过程，女性偏爱略带红色的颜色，并且跟长熟的水果和健康的脸色联系起来。 |
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Researchers said they came to this conclusion after watching how elephants on a Kenyan game reserve behaved towards a matriarch(3) who fell ill and died.
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研究人员说他们是在观察了肯尼亚保护区里的大象如何对待病逝的“女家长”后得出这一结论的。 |
