In the field of cancer research, animal testing has brought many benefits. The Americans for Medical Progress website states that "thanks largely to animal research, there is a new molecular and genetic understanding of tumor biology, leading to treatments aimed at killing cancer cells more directly, which are molecularly different from normal cells. cells. Using this knowledge to design drugs focused on these abnormalities is called rational drug design and is considered by many to be the emerging future reality of cancer treatment – ​​“kinder, gentler” cancer therapies that target only cells abnormal” (1). . These advances in medical research might well have gone unnoticed for longer, or even permanently, without the aid of testing on