Animal testing and research is conducted for a variety of purposes, including developing new medicines and treatments for human diseases, studying animal behavior and biology, and testing the safety of new products.

There are a number of ethical concerns associated with animal testing and research, including the fact that animals are sentient beings and deserve to be treated with respect, that animal testing can cause pain and suffering, and that animal testing can lead to the development of treatments that are not effective in humans.

There are a number of alternatives to animal testing and research, including computer modeling, in vitro testing, and human clinical trials.

There are a number of arguments in favor of animal testing and research, including the fact that animal testing has led to the development of many life-saving medicines and treatments, that animal testing is necessary to ensure the safety of new products, and that animal testing can help us to understand animal behavior and biology.

There are a number of arguments against animal testing and research, including the fact that animal testing is cruel and inhumane, that animal testing is not always accurate or reliable, and that animal testing can lead to the development of treatments that are not effective in humans.

Animal testing is strictly regulated in the United States by the Animal Welfare Act and other laws.

There are a number of international laws and regulations governing animal testing and research, including the European Union's ban on animal testing for cosmetics, the United Nations' treaty that prohibits animal testing, and the World Health Organization's guidelines for the ethical use of animals in research.

There are a number of organizations that are working to end animal testing and research, including the Humane Society of the United States, People for the Ethical Treatment of Animals (PETA), and the American Anti-Vivisection Society.

Individuals can help to end animal testing and research by boycotting products that are tested on animals, donating to organizations that are working to end animal testing and research, and writing to their elected officials and urging them to support legislation that would ban or restrict animal testing.

Many experts believe that animal testing will eventually be replaced by alternative methods, such as computer modeling, in vitro testing, and human clinical trials.