Basically, animal experimentation has played a dominant role in leading with new findings and human advantages.Animal research has had a main function in many scientific and medical advances in the past decade and is helping in the understanding of several diseases.
Every year, millions of animals experience painful, suffering and death due to results of scientific research as the effects of drugs, medical procedures, food additives, cosmetics and other chemical products.
Opponents of animal testing say that it is cruel and inhumane to experiment on animals, that alternative methods available to researchers can replace animal testing, and that animals are so different from human beings that research on animals often yields irrelevant results. Anderson Cancer Center's animal research facility, states that "we wouldn't have a vaccine for hepatitis B without chimpanzees," and says that the use of chimps is "our best hope" for finding a vaccine for Hepatitis C, a disease that kills thousands of Americans annually.
Animal research has also contributed to major advances in understanding and treating conditions such as breast cancer, brain injury, childhood leukemia, cystic fibrosis, malaria, multiple sclerosis, tuberculosis, and many others, and was instrumental in the development of pacemakers, cardiac valve substitutes, and anesthetics. Living systems like human beings and animals are extremely complex.
An estimated 26 million animals are used every year in the United States for scientific and commercial testing.
Animals are used to develop medical treatments, determine the toxicity of medications, check the safety of products destined for human use, and other biomedical, commercial, and health care uses.