Research on animals is performed to gain more knowledge about diseases and how to cure them, and to evaluate drugs for toxicity before testing them on humans. In fact, animal studies have played a vital role in almost every major medical advance.
动物研究是为了获得更多有关疾病和如何治愈这些疾病的知识，以及在将药物用于人体试验前评估它们的毒性。事实上，动物研究在几乎每一项重大的医学进步中都扮演了一个重要的角色。