Kurt Benirschke

Kurt Benirschke was a German-American pathologist, geneticist, and animal conservationist. He was expert on the placenta, reproduction in humans, and myriad mammalian species. In 1975, Benirschke founded the San Diego Zoo's Center for the Reproduction of Endangered Species, where he created the world's first frozen zoo for the cryopreservation of genetic material from endangered species.