从理论上讲，把非洲猎豹引进美国西部，可以让叉角羚重新回到生物学家所说的自然进化轨道上。
Importing African cheetahs to the western United States could, in theory, put the pronghorn back onto its natural evolutionary trajectory according to these biologists.
政策制定者和经济学家们自然都对美国的惩罚关税政策难以认同，很多人认为一个对中国负债累累的国家对债权国提出威胁实在是不智之举。
Its policymakers and economists are, of course, united in their distaste for America’s tariff talk.
纽约美国自然史博物馆的天文学家马克·麦克卢承认这是个麻烦的问题，但现在我们可以说它曾经是个问题，因为麦克卢和他的同事已经解决了这个问题。
"It's a problem," admits Mordecai-Mark Mac Low, an astronomer at New York's American Museum of Natural History. Or, rather, it was a problem - but Mac Low and his collaborators may have solved it.
但不久之后这美国自然主义者和哲学家意外地将麻省上百亩上好的林地一把火烧没了。
But shortly thereafter the American naturalist and philosopher accidentally burned over a hundred acres of pristine Massachusetts woodlands.
来自美国威斯康辛麦迪逊大学的人类学家和遗传学家约翰·霍克斯指出，人类已经创建立起了一个与自然选择相违背的生活型态。
John Hawks, an anthropologist and geneticist at the University of Wisconsin Madison, says we've created a lifestyle that is at odds with the one natural selection provided us with.
驻开罗的美国自然史博物馆副研究员、瑞士科学家多那特·阿哥斯蒂说：“该项目的规模无与伦比。”
"The project is unique in its scope," said Donat Agosti, a Swiss scientist and Cairo-based research associate at the American Museum of Natural History.
美国自然历史博物馆脊椎古生物学家Jack Conrad解释说，k - T大灭绝之后，不但哺乳动物开始主宰地球，鲨鱼也开始在海洋中扩张。
Not only did mammals sweep across the planet after K-T, but sharks expanded across the seas, explained American Museum of Natural History vertebrate paleontologist Jack Conrad.
今年3月，美国地质勘探局的地球物理学家汤姆·帕森斯(Tom Parsons)告诉“自然”杂志，伊斯坦布尔在未来25年内受7级或更高级别地震袭击的机率是在30%和60%之间。
In March, USGS geophysicist Tom Parsons told Nature that the chances of Istanbul being hit by a magnitude 7 or greater quake in the next 25 years are between 30 and 60 percent.
据估计世界上大约23，300件核武器储存在14国家111处地点，依照美国科学家联合会（FAS）和自然资源保护协会（NRDC）做出的总结。
The world's approximately 23,300 nuclear weapons are stored at an estimated 111 locations in 14 countries, according to an overview produced by FAS and NRDC.
据报道，美国布兰戴斯大学的科学家们已经开发出一种计算机程序，能使用自然选择法则让机器人进化。
Reportedly scientists at Brandeis University in the U. S. have developed ba computer program that uses the principles of natural selection to evolve robots.
历史学家JeffSklansky说，美国公司缓慢演变为自然人始于1819年的一项高等法院裁定。
Historian Jeff Sklansky says a slow shift to personhood for American companies began with a Supreme Court ruling in eighteen nineteen.
被很多自然学家认为是美国最原始的沼泽动物栖息地之一。
Considered by many naturalists to be one of the most pristine swampland habitats in the United States.
这一天里将会有特色展示，家庭活动与来自博物馆地球与行星研究中心，美国自然历史博物馆与NASA的科学家带来的演讲。
The day will feature displays, family activities and presentations by scientists from the museum's Center for Earth and Planetary Studies, the museum of Natural History and NASA.
总部位于美国的自然保护协会的资深生物学家艾里克·梅加德的工作有助于这项发现。
Erik Meijaard, a senior ecologist with the U. S. -based Nature Conservancy, helped make the find.
自奥尼尔至今，美国当代剧作家们都非常注重生态学家们所关心的人与自然、人与社会、人与自身（精神）的关系的探索。
The modern American dramatists since O'Neal, as well as ecologists, all pay close attention to explore the relations between human and nature, human and society, human and himself (his spirit).
“那些事情都是自然的规律，而我们剩下了一个十分疲软的的经济，”保罗艾希沃斯，在成本经济学的高级美国的经济学家。
"Those things have naturally run their course, and we're left with a very weak economy," Paul Ashworth, senior U. s. economist at Capital Economics.
美国国家航空航天局的科学家们称火星曾被巨大的湖泊、流动的河流以及其他潮湿的自然环境所覆盖，而这些都使其有了维持生命的可能。
NASA1 scientists said that Mars was covered once by vast lakes, flowing rivers and a variety of other wet environments that had the potential to support life.
黛博拉•科恩是美国兰德公司一位高级自然科学家，她所著书籍《肥胖危机：肥胖背后隐藏的原因及如何摆脱肥胖》即将出版问世。
Deborah Cohen is a senior natural scientist at the Rand Corp. and the author of the forthcoming book "a Big Fat Crisis: the Hidden Forces Behind the Obesity Epidemic and How We Can End it."
爱默生是19世纪美国著名的超验主义哲学家，自然思想是他超验主义思想体系的一个重要部分。
Emerson is a famous American transcendentalism philosopher in 19th century. His'view on nature is an important part of his transcendentalism theory.
驻开罗的美国自然史博物馆副研究员、瑞士科学家多那特·阿哥斯蒂说：“该项目的规模无与伦比。”
The project is unique in its scope, "said Donat Agosti, a Swiss scientist and Cairo-based research associate at the American Museum of Natural History."
美国东北大学的心理学家丽莎·贝瑞特教授在《自然神经科学》杂志上发表了以上调查结果。东北大学位于马萨诸塞州波士顿市。
Professor Lisa Barrett, a psychologist at Northeastern University in Boston, Massachusetts, reported the findings in the journal Nature Neuroscience.
美国东北大学的心理学家丽莎·贝瑞特教授在《自然神经科学》杂志上发表了以上调查结果。东北大学位于马萨诸塞州波士顿市。
Professor Lisa Barrett, a psychologist at Northeastern University in Boston, Massachusetts, reported the findings in the journal Nature Neuroscience.
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