Final answer:
The infamous doctor who conducted experiments on twins in Auschwitz was Dr. Josef Mengele. He escaped to South America after World War II and was never punished for his crimes.
Step-by-step explanation:
The infamous doctor who conducted scientific experiments on twins in Auschwitz was Dr. Josef Mengele. Dr. Mengele earned notoriety for his cruel and inhumane medical experiments on prisoners, particularly focusing on twins, during the Holocaust. Despite the egregious nature of his human rights violations, Dr. Mengele managed to flee to South America after the war, escaping justice and never facing trial for his actions. While Auschwitz is known for its gas chambers and crematorium, a significant aspect of its horror includes the medical experiments conducted on prisoners of the camp, contributing to its infamy as the most notorious of the concentration camps.