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Wilhelm August Oscar Hertwig contributed to embryology through his studies of cells in development and his discovery that only one spermatozoon is…
PeopleFertilizationBiographySpermOvaKarl Wilhelm Theodor Richard von Hertwig is an important figure in the history of embryology for his contributions of artificial hybridization of sea…
PeopleZoologyBiographyHybridizationSea UrchinsFather Frank Pavone, a key proponent of the Roman Catholic Church's pro-life movement, has devoted his life's work to ending abortion, euthanasia,…
PeoplereligionReproductionBiographyCatholicismSt. Augustine of Hippo, born Aurelius Augustinus to a respectable family in the year 354 CE, is now considered one of the foremost theologians in the…
PeoplereligionBiographyCatholicismFetus