The Terrible Nazi Medical Experiments

Experiments of Twins

Twins Yehudit and Lea, some of Mengele’s test subjects in 1944 (Source: The History Collection)

Mengele’s favorites, experiments on twin children, tried to demonstrate the similarities and differences between twins, but also how the human body can be manipulated beyond its normal limits. Between 1943 and 1944, the “doctor of death” performed about 1,500 medical experiments on twins, of which only 200 survived. By far the most abominable procedure he tested was the attempt to surgically create Siamese twins, which would divide various organs.