Laboratory animals play a critical role in toxicology studies. They allow researchers to assess the safety and potential risks of chemicals, pharmaceuticals, and other substances before they are introduced to humans. Animal models provide a biological system that can mimic human responses, thus offering invaluable insights into the adverse effects of these substances. By using animals, toxicologists can predict toxicity levels, determine safe dosage ranges, and identify possible side effects, guiding regulatory decisions and protecting public health.