为了符合美国有毒物质控制法，制造商们转而进入实验室，选择动物作为试验对象，通常他们会选择啮齿动物。
To comply with the us Toxic Substances Control act, manufacturers turn to testing LABS, which expose animals-usually rodents-to high levels of the chemical in question.
对于一个喜爱宠物的国家来说，英国所进行的动物试验数量大得惊人——每年要使用三百万只动物进行实验。
FOR a nation of pet lovers, Britain conducts a surprising number of experiments on animals: some 3m a year.
同时进行旷场行为测试、洞板试验、甩尾试验、步下法试验等动物行为学实验，旨在研究这些基因在整体动物水平上的功能表现。
Meanwhile, carry on the animal behavior test, including Open Field behavior, Hole-board test, Tail Flick Latency (TFL) test and Step-down test to discover the gene function on the whole animal level.
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