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Biologist William Keith Brooks studied embryological development in invertebrates and used his results as evidence for theories of evolution and…
BiographyEducationPhysician and pathologist Elizabeth Maplesden Ramsey was a member of the Carnegie Institution of Washington (CIW) for thirty-nine years. The…
PeopleBiographyPrimatesMultiple theories about what determines sex were tested at the turn of the twentieth century. By experimenting on germ cells, cytologist Nettie Maria…
PeopleHeredityReproductionBiography