Mice share more than 95 percent of their genes with humans. Researchers have used mice to study leukemia, improving the cancer survival rate in the United States. Are there ethical issues relating to this practice? This book provides a thorough overview of the major pros and cons of animal testing.

Introduction to animal testing -- Pro: animal testing leads to medical breakthroughs -- Pro: animal testing is accurate and precise -- Pro: laws protect research animals -- Con: animal testing causes animals to suffer -- Con: animal testing does not predict human reactions -- Con: alternative methods provide better results.