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Leonardo da Vinci was born on 15 April 1452, the illegitimate son of a young peasant girl by the name of Caterina and Ser Piero da Vinci, a well-…
PeopleBiographyFetusAnatomyJohn Spangler Nicholas, an American biologist, was born on 10 March 1895 in Allegheny, Pennsylvania. He was the only child of Elizabeth Ellen…
PeopleBiographyMammalsAmphibiansMarie Charlotte Carmichael Stopes was born in Edinburgh, Scotland, on 15 October 1880 to Charlotte Carmichael Stopes, a suffragist, and Henry Stopes…
Peoplepublic healthethicsReproductionBiographyThe establishment and growth of developmental-evolutionary biology owes a great debt to the work of John Tyler Bonner. Bonner's studies of cellular…
PeopleDictyosteliidaBiographyMorphogenesisMulticellularityFather Frank Pavone, a key proponent of the Roman Catholic Church's pro-life movement, has devoted his life's work to ending abortion, euthanasia,…
PeoplereligionReproductionBiographyCatholicismEdward B. Lewis studied embryonic development in Drosophila, including the discovery of the cis-trans test for recessive genes, and the…
PeopleDrosophilaBiographyViktor Hamburger was an embryologist who focused on neural development. His scientific career stretched from the early 1920s as a student of Hans…
PeopleHamburger, Viktor, 1900-2001Nerve Growth FactorBiographyNeuronsRobert William Briggs was a prolific developmental biologist. However, he is most identified with the first successful cloning of a frog by nuclear…
PeopleNuclear Transfer TechniquesNuclear TransplantationBiographyBorn on 24 March 1890 in Marlborough, Massachusetts, to Ann and Frank Rock, John Charles Rock was both a devout Catholic and one of the leading…
PeopleContraceptionReproductionReproductive RightsCatholicism