Beyond that problem, it is necessary to extrapolate cancer data from animals to humans, and to deal with uncertainty about the levels of human exposure.
除此之外，也有必要从动物的癌变数据外推至人类癌变水平，并解决人类接触水平上的不确定性。海底交混响就是按时间外推到一种时间零值的。
Few places have tracked chimp behavior over long periods, and those that have are also more likely to have protected their animals from human influence.
很少有地方会长期追踪黑猩猩的行为，而那些追踪过的地方也更有可能保护它们免受人类的影响。
Animals seem to be the main source of new infectious disease in man: in general around 60% of human pathogens are transmissible from animals; among new diseases, the rate is about 75%.
动物似乎是人类传染性疾病的主要来源体，通常60%人类的病原体来源于动物，而在新出现的疾病中，这一比例约在75%。
No single, essential difference separates human beings from other animals -- but that hasn't stopped the phrasemakers from trying to find one.
没有一个本质差别能把人和动物区分开来——但这并没能阻止人们要寻找差别的决心。
We have a responsibility to learn all we can about these amazing animals and to protect them from the greatest danger to life in the deep: the human species.
我们有责任了解我们能够为这些奇妙动物的一切，保护它们免受人类这种深海生存中最大危险的毁灭。
Doctors say it is possible, but unlikely, to contract a human form of the disease by eating meat from infected animals.
医生们说，人类有可能通过食用病牛肉而感染上导致脑部病变的致命疯牛病，但是可能性并不大。
They are transmitted to humans by tsetse fly (Glossina genus) bites which have acquired their infection from human beings or from animals harbouring the human pathogenic parasites.
它们通过被携带人类致病寄生虫的人类或动物感染的采采蝇(舌蝇属)叮咬传播给人类。
The monkeypox virus is transmitted to people from a variety of wild animals and it spreads in human population through human-to-human transmission.
猴痘病毒由各类野生动物传播给人类，病毒通过人与人传播方式在人群中蔓延。
He said his goal is: 'to get as much information as possible' so that no human activity - from oil drilling to park picnicking - harms animals.
他说，他的目标是：“得到尽可能多的信息”，以便没有人类活动——从石油钻探到公园野餐——伤害到动物。
Over the past two millennia, hundreds of its native plants and animals have been rendered extinct because the human population has risen from about one million to more than 51 million.
在过去的两千年间，由于当地人口数量由100万左右上升到超过5100万，成百上千的当地植物和动物慢慢灭绝。
Scientists already know how to produce a synthetic version, making the move from lab animals to human therapy relatively straightforward.
科学家已知道如何去产生人功合成的复制品，即从实验动物过渡到相对直接的人体治疗。
What sets human beings apart from animals is not the pursuit of happiness, the researchers said, but the pursuit of meaning, which is unique to humans.
研究人员表示，真正将人类与动物区分开来的，并非对于幸福的追求，而是对于人生意义的追求，这是人类的专属。
Man's preoccupation with time derives ultimately from his unique relationship to it. All animals are changed by it. But only human can manipulate it.
人们对时间的关注来源于他们与时间的特殊关系。所有的动物都随着时间的改变而改变，但是只有人类可以驾驭时间。 。
Vector organisms refer to organisms that can transmit pathogens from human beings or other animals to human beings, such as mosquitoes, flies and fleas.
病媒生物：指能够将病原体从人或者其他动物传播给人的生物，如蚊、蝇、蚤类等。
This is the so-called human wisdom according to my meaning, which is obviously different from the slyness of fox or the acumen of animals.
这就是我所谓的人类智慧，这显然区别于狐狸纯粹的狡猾或者动物的聪明。
The topic about friendship and trust can also seen from How To Train Your Dragon and Mononoke Hime, human beings are not enemy for animals, and so are animals, the war is not needed.
同样类似的友谊、信任也出现在《驯龙高手》中，人与动物不是敌人关系，不需发动战争；
Indeed, the human immune system appears more resistant to tolerance induction than expected from experimental studies in animals.
事实上，人类的免疫系统比较于实验动物看来更难于诱导免疫耐受。
Indeed, the human immune system appears more resistant to tolerance induction than expected from experimental studies in animals.
事实上，人类的免疫系统比较于实验动物看来更难于诱导免疫耐受。
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