匿名使用者2007.04.21 回答

About Animal experiment /testing Where would we be without new drugs？ Animal testing is used to develop new medicines to meet the needs of a growing number of older people。 These medicines are helping us to live longer and healthier lives。 But some activists are trying to change the way we think about new medicines。 They are against the use of animals to test these drugs and believe such testing is unnecessary。 Scientists who work in medical labs know from experience that there is a very high chance that medicines that work with animals can also work with people。 Sometimes mice are used to begin the experiment， then later dogs and monkeys。 Finally， when the scientists are almost sure about the safety of their new medicines， they will ask for humans to help to test them。 As we can see， animal testing is a practical， necessary part of the procedure。 However， some people are against animal testing。 They believe that it is unnecessary to use animals in testing new medicines because doctors can use knowledge that was gained from experiments in the past。 These activists also say animals have the same rights as humans。 But what if someone in our family has cancer and our doctor says a new drug might make them better？ Do you really think we will care what happens to a mouse？ Some kinds of animal testing on products that make us look better， like skin creams， may really be unnecessary。 Yet doctors have a duty to continue to improve the lives of humans first。