关于动物实验的历史争论作文
magnetAnimals have been friends or foes of human beings at different stages in human history In modern times, experiments upon animals have been a breeding ground for heated debate.Some animal right activists argue that animal experiments should be banned becau subjecting animals to experimentation is unwarranted on moral grounds, whereas some others contend that the advancement of science necessitates animal testing. Personally, both sides of the view should be taken into consideration.
xcellGranted, mounting empirical evidence suggests that many animal experiments are performed callously without any heed to the discomfort or pain that laboratory mammals endure. For one thing,improper confinement of the test animals such as locking them up in cramped cages is inhumane; and this, in turn, can verely disrupt the natural biological functions of the test animals. For another, the effects of vaccination or viviction conducted on live mammals can be chilling. In extreme cas, they constitute sheer torture of animals.
properfootballer>promod
yasi
Nevertheless, from a more utilitarian standpoint, evidence abounds that animal subjects are still an indispensable part of scientific rearch at this pha of human development. In the first place, drug experimentation on live mammals is, indisputably, far more effectual thanexperimentation on bacteria or on other lower species in determining drug safety. In the cond place, in the realm of space rearch, live animals are still practical alternatives on a flight not considered to be sufficiently safe for human astronauts. Lastly, lab rearch about the behavioral tendencies of chimpanzees, gorillas or other members of the primate group is also a worthy
杨梅的英文endeavor, in light of the fact that it can consistently advance anthropological and genetic sciences.
悬崖上的金鱼公主日语版To conclude, I recognize that experiments upon animals may induce suffering to the test animals.However, there are no practical alternatives to this method at the current stage of scientificdevelopment.hgy
