Testing on animals is beneficial for a variety of reasons. Animal testing helps researchers gain a better understanding of the effects of certain treatments on the human body. It allows scientists to determine the safety and effectiveness of drugs, cosmetics, and medical devices before they are tested on humans. Animal testing also helps researchers develop treatments for diseases and better understand how they can be prevented. Additionally, animal testing can be used to develop new surgical techniques and to study how to reduce the risk of animal- and human-based diseases.