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The hedgehog signaling pathway is a mechanism that regulates cell growth and differentiation during embryonic development, called embryogenesis, in…
Drosophila melanogasterCyclopiaGenetic regulationZebra danioGenesLazzaro Spallanzani's imaginative application of experimental methods, mastery of microscopy, and wide interests led him to significant contributions…
PeopleRegenerationBiographyWhat Every Girl Should Know was published in 1916 in New York City, New York, as a compilation of articles written by Margaret Sanger from 1912 to…
LiteratureObscenity (Law)Abortion--Law and legislation--United StatesAbortionBirth control clinicsThe Clinica Para Madres (Mother’s Clinic) opened in Tucson, Arizona, in December of 1934 as the first birth control clinic in Arizona. After moving…
OrganizationSanger, Margaret, 1879-1966ArizonaPlanned Parenthood Federation of AmericaContraceptionOliver Allison Ryder studied chromosomal evolution and endangered species in efforts for wildlife conservation and preservation at the San Diego Zoo…
San Diego ZooEscherichia coliPrzewalski's horseQuaggaBenirschke, KurtLandrum Brewer Shettles is remembered as an important contributor to early in vitro fertilization research in the United States as well as a prolific…
PeopleFertilization in VitroReproductionBiographyFertilizationHoward Wilber Jones Jr. and his wife, Georgeanna Seegar Jones, developed a method of in vitro fertilization and helped create the first baby in the…
FetusPregnancyEmbryologyEmbryosReproductionIn eighteenth century Germany, Johann Friedrich Blumenbach studied how individuals within a species vary, and to explain such variations, he proposed…
AnthropologyAnatomy, ComparativeVariation (Biology)EmbryosDevelopmental BiologyIn 1991, the United Kingdom established the Human Fertilisation and Embryology Authority (HFEA) as a response to technologies that used human embryos…
OrganizationEmbryologyReproductive HealthHuman reproductive technologyWarnock, Mary, 1808-1900The birth control pill, more commonly known as "the pill" is a form of contraception taken daily in pill form and consisting of synthetic hormones…
ContraceptionReproductionReproductive Rights