While studying endangered species may provide some insights to scientists, the cost of keeping these animals in existence can not be justified for research purposes alone.

虽然研究濒危物种可能为科学家提供一些领悟，但仅仅为了研究的目的而饲养这些动物的话，其饲养成本是不合理的。

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Our research provides strong support for the value of zoos in connecting people with animals and with nature.

我们的研究为动物园的价值提供了强有力的支持，证明动物园是人与动物、人与自然之间的纽带。

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So keeping tabs on the illness in animals is a big focus of flu research.

所以为动物疾病打标签做记录是流感研究的一大关注点。

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In Uganda,a new study has confirmed earlier research linking the spread of sleeping sickness to infected farm animals.

VOA: special.2010.01.04

Professor Robin Lovell-Badge, geneticist at the National Institute for Medical Research, said that in reality the number of imported animals such as mice that are used in research is very small because a pair are bred when they are brought into a lab.

BBC: Medical research 'hindered by campaigners'

After decades of being research animals, the chimps unsurprisingly looked weary and dishevelled, even after their anti-depressant treatment.

BBC: Lab chimps successfully treated with anti-depressants

One charity that has decided to be open about its own use of animals in research is the British Heart Foundation.

ECONOMIST: Animal rights: Good news for humans | The