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Scientists have found sexual deformities in male fish caught off the Californian coast, suggesting that gender-bending chemicals have reached alarming levels in the waters.
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近日，美国科学家发现，从加利福尼亚附近海域捕捞上来的鱼存在严重的性别畸形，许多鱼变成了雌雄同体的“阴阳鱼”。这意味着海水已被相当数量的人类性药品污染。 |
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Scientists have found that a chemical in the skin of the Australian red-eyed tree frog can block infection by HIV - the virus that causes AIDS - by destroying the viral particles.
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美国研究人员日前研究发现，澳大利亚红眼树蛙的皮肤中含有一种化学物质，这种化学物质可以通过破坏HIV病毒来阻断艾滋病的传播。 |
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Scientists have found that a spoonful of the cold stuff lights up the same pleasure centre in the brain as winning money or listening to your favourite music.
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英国科学家日前发现，吃一勺凉凉的冰淇淋就像听自己最喜欢的音乐一样，可以使大脑中的快乐区域变得活跃起来。 |
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Scientists have found the first unequivocal link between man-made greenhouse gases and a dramatic heating of the Earth's oceans.
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科学家已经在人类制造的温室效应气体与地球海洋不寻常变热之间，发现第一个明确的关联。 |
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Scientists have given it a drubbing for its inaccuracies, but the movie has also garnered cautious endorsements for raising the profile of an important issue.
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科学家们痛斥这部电影严重失实，但这部电影提出了一个重要问题的侧面，因而仍就获得了谨慎的认可。 |
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Scientists have identified patterns of genetic markers that can reveal a person's geographic ancestry — a term they prefer to race,which they say is ambiguously defined and connotes social aspects as well as biology.
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科学家已经鑑视出基因标记的模式，这个可以揭露个人“地理学上的先祖”，或是另一个他们更喜欢用的词“种族”，这个辞令科学家认为相当含糊不清的定义和暗示社会的观点，亦如生物学一般。 |
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Scientists have isolated the virus causing the epidemic.
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科学家们已分离出引起这种流行病的病毒。 |
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Scientists have known for some time that a steroid breakdown product of progesterone is a powerful sleep inducer that, in higher doses, can have analgesic, anticonvulsant and even anesthetic properties.
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黄体激素分解后的产物中，有一种类固醇，是强有力的催眠剂，剂量高一点，就可以当作止痛剂、抗惊厥剂，甚至麻醉剂，这是科学家知道好一阵子的事。 |
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Scientists have known for some time that hypertension is a “heritable” condition that runs in families, though diet and other factors also contribute to high blood pressure.
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一直以来，科学家们都认为高血压是一种遗传因素为主、饮食和一些其他因素协同的家族性疾病。 |
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Scientists have known since the 1930s that there was a problem: that the mass of the observed matter was far too small for gravity to keep the stars within the galaxies and the galaxies within clusters.
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自1930年以来，科学家们发现这样一个问题：宇宙中可见物质所形成的引力远不足以将星系内的恒星以及星系团内的星系结合在一起。 |
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Scientists have known that neural stem cells play a key role in both embryonic and postnatal mice, driving the development of specialized cells within the brain such as neurons, astrocytes, oligodendrocytes, and ependymal cells.
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科学家们已经知道神经干细胞在胚胎和出生后小鼠均扮演着重要角色，推动着大脑具体细胞的发育例如神经元、星形细胞，胶质细胞和室管膜细胞。 |
