Last time, we discussed some patterns of animal behaviour, and in today's lecture we will concentrate on the methods used in the study of animals.

上节课我们讨论了动物行为的一些模式，今天的课我们将集中讨论动物研究中使用的方法。

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These extreme shifts would have put a lot of stress on the bodies of animals that were used to a more moderate range of temperatures.

对于已经习惯较为温和的温度范围的动物来说，这些极端变化会给它们的身体带来很大压力。

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Intensively used grasslands are also harmed as the soil is continually crushed under the weight of heavy animals.

VOA: special.2010.01.19

This concept of introducing foreign genes, genes that are made of recombinant DNA into animals using this kind of technique is widely used in biomedical research.

这种通过基因重组,来向动物体内导入外源基因的方法,广泛应用于,各种生物医药的研究中

耶鲁公开课 - 生物医学工程探索课程节选

MEPs argued that re-use of animals helped reduce the total number of animals used.

BBC: EU tightens rules on welfare of lab animals

"But the issue of antibiotic-fed animals has become more of a problem recently because there are an increasing number of drugs used in animals that are very similar in their formulation to human drugs, " says Thompson.

FORBES: Turkey, Stuffing And Antibiotics

All of the animals Apple has used come from Felidae family in the Carnivora order of mammals.

FORBES: Coming Soon: OS X, Ocelot? Apple Running Out Of Cats