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During the 1870s and early 1880s, the British morphologist Francis Maitland Balfour contributed in important ways to the budding field of…
BiographyEvolutionMutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs is the thirteenth chapter of Charles Darwin's book The Origin of…
LiteratureEvolutionEvolution (Biology)Natural selectionEmbryologyJane Marion Oppenheimer, embryologist and historian of science and medicine, was born on 19 September 1911 in Philadelphia, Pennsylvania, to Sylvia…
PeopleBiographyEvolutionhistoryThe biogenetic law is a theory of development and evolution proposed by Ernst Haeckel in Germany in the 1860s. It is one of several recapitulation…
EvolutionDevelopmental BiologyEmbryologyAnatomy, ComparativeGavin de Beer was an English zoologist known for his contributions to evolution and embryology, in particular for showing the inadequacy of the germ…
PeopleBiographyEvolutionZoologyErnst Heinrich Philipp August Haeckel was a prominent comparative anatomist and active lecturer in the late nineteenth and early twentieth centuries…
PeopleHaeckel, Ernst, 1834-1919Biological EvolutionBiographyEvolutionRichard Woltereck was a German zoologist and hydrobiologist who studied aquatic animals and extended the concept of Reaktionsnorm (norm of reaction)…
PeopleEvolutionHeredityEmbryologyAquatic animalsEtienne Geoffroy Saint-Hilaire, commonly known as Geoffroy, studied animals, their anatomy and their embryos, and teratogens at the National Museum…
Geoffroy Saint-Hilaire, Etienne, 1772-1844TeratologyZoologyFrench RevolutionHomology theoryAt the turn of the twentieth century, William Bateson studied organismal variation and heredity of traits within the framework of evolutionary theory…
GeneticsHeredityMendel, Gregor, 1822-1884EvolutionEmbryologyIn nineteenth century Great Britain, Thomas Henry Huxley proposed connections between the development of organisms and their evolutionary histories,…
PeopleDarwin, Charles, 1809-1882EvolutionpaleontologyEmbryology