Nazi Germany also performed dreadful medical experiments on many adults and children in concentration camps. Most victims were Jews, but the Nazi doctors also experimented on Romani, Sinti, ethnic Poles, Soviet POWs and disabled Germans.
The notorious “death angel” Dr. Josef Mengele, an SS captain at Auschwitz, “rescued” certain prisoners slated for execution for his own medical experiments. Although Mengele had previously performed legitimate twin research under his mentor Dr. Otmar von Verschuer at the Kaiser Wilhelm Institute for Anthropology, Human Genetics, and Eugenics, his work at Auschwitz was demonically unfettered. Maiming or killing his subjects, Mengele performed a broad range of agonizing and often lethal experiments with Jewish and Roma twins, most of them children.