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Adib Jatene in Brazil was the first surgeon to successfully perform the arterial switch operation in 1975. The operation corrected a heart condition…
Heart--SurgeryTransposition of Great VesselsCongenital Heart DiseaseAorta--AbnormalitiesPulmonary artery--AbnormalitiesOf Sir D'Arcy Thompson's nearly 300 publications, the theoretical treatise On Growth and Form, first published in 1917, remains the principal work…
LiteraturePublicationsFormsThe hedgehog signaling pathway is a mechanism that regulates cell growth and differentiation during embryonic development, called embryogenesis, in…
Drosophila melanogasterCyclopiaGenetic regulationZebra danioGenesHans Adolf Eduard Driesch was a late-nineteenth and early-twentieth century philosopher and developmental biologist. In the spring of 1891 Driesch…
ExperimentsPublicationsSea UrchinsIn 2004, Amanda J. Drake and Brian R. Walker published “The Intergenerational Effects of Fetal Programming: Non-genomic Mechanisms for the…
LiteratureReproductive HealthGestationFetal MonitoringFetal DistressBarbara McClintock conducted experiments on corn (Zea mays) in the United States in the mid-twentieth century to study the structure and function of…
TransposonsCornCytogeneticsChromosomesGeneticsIn 1978, James Kitching discovered two dinosaur embryos in a road-cut talus at Roodraai (Red Bend) in Golden Gate Highlands National Park, South…
ContextDinosaursDinosaurs--EggsMassospondylus carinatusMassospondylusBetween 1991 and 1994, Christian Peeters and Bert Hölldobler studied the reproductive behaviors of the Indian jumping ant (Harpegnathos saltator), a…
AntsPoneraInsectsWorkers (Insects)Queens (Insects)The General Embryological Information Service (GEIS) was an annual report published by the Hubrecht Laboratory in Utrecht, The Netherlands from 1949…
LiteratureNieuwkoop, Pieter D. (Pieter Dirk)Science--History--PeriodicalsScience--Periodicals--PublishingDrosophila melanogasterIn the second half of the twentieth century, scientists learned how to clone organisms in some species of mammals. Scientists have applied somatic…
CloningCell nuclei--TransplantationSpemann, Hans, 1869-1941Genetic Engineering