IntroductionEvery year in American laboratories, more than 100 million animals are burned, poisoned and lame (Top 5 shocking facts about animal testing) . Every year, scientists use animals to advance and improve the lives of humans and animals. However, many animals tested suffer and die. But others disagree and argue that we should use animals because of progress. So, what are the pros and cons of using animals? This problem will be the subject of research in different fields such as medicine, ethics and economics. Main body. Science. According to the article “Arguments for and Against: “Should Animals Be Used for Scientific or Commercial Testing?” animal testing is very useful for humanity. Thanks to this, people discovered new drugs and methods of treating serious diseases. As an example, we can use the discovery of insulin, which saved the lives of diabetics. Or the polio vaccine, which reduced mortality by almost 1,570 times, from 350,000 in 1988 to 223 cases in 2012 (polio vaccine). In addition to this cancer treatment, childhood leukemia, cystic fibrosis, malaria, tuberculosis and brain damage have been developed. As director of the Animal Research Center at the University of Texas MDAndersonCancer Center, Chris Abee said, “We wouldn't have a hepatitis B vaccine without chimpanzees” (Once Invaluable, Research Chimpanzees Are now devalued). Today, it is hoped that animal testing will in the future make it possible to find new methods to combat incurable diseases. All of these examples support the fact that thanks to animal testing, people today live healthier lives and are more likely to survive than in the past. This is therefore one of the most significant advantages of animal testing. This is the reason why people support...... middle of paper ...... Np, July 5, 2010. Web. February 23, 2014. ““Alternatives?” » Speaking of research. Np, and Web. February 22, 2014. “Science, medicine and animals. » Science, medicine and animals. Np, and Web. February 20, 2014. “Problems in Animal Research.” » -The American Anti-Vivisection Society (AAVS). Np, and Web. February 23, 2014. “Understanding Animal Research.” » Understanding animal research. Np, and Web. March 4, 2014. “Houston.” Chronic. Np, and Web. March 4, 2014. “Five shocking facts about animal testing (video). » Video commentary on PETA's top five shocking facts about animal testing. Np, and Web. March 4, 2014. "AFC - The thalidomide tragedy and the failure of animal testing." AFC - The tragedy of thalidomide and the failure of animal testing. Np, and Web. March 4, 2014. “McClatchy DC.” Stimulus funds fund monkey research in NCNp, nd Web. March 4. 2014.