http://www.almotamar.net صحيفة إلكترونية يومية تصدر عن حزب المؤتمر الشعبي العام (اليمن) http://www.almotamar.net/3592.htm 2007-10-25 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.