这项研究结果已经发表在《濒危物种研究》杂志的网站上。
The results were published online in the journal Endangered Species Research.
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。
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.
他说，由于存在濒危的物种，侵犯性的生理研究方法并不适宜。
As these are endangered species, he said, invasive methods of physiological study are not appropriate.
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