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Hermann Joseph Muller (1890-1967)
By: Kevin Gleason
| Published: May 25, 2017
Hermann Joseph Muller studied the effects of x-ray radiation on genetic material in the US during the twentieth century. At that time, scientists had…
Muller, H. J. (Hermann Joseph), 1890-1967X-raysRadiationGeneticsMutation
Study of Fossilized Massospondylus Dinosaur Embryos from South Africa (1978-2012)
By: Madison Paige
| Published: Mar 31, 2015
In 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 carinatusMassospondylus
Henry Morgentaler (1923-2013)
By: Sepehr Abdi-Moradi
| Published: Jun 09, 2017
Henry Morgentaler was a physician who performed abortions, acted as a reproductive rights activist, and advocated for legal access to abortions in…
AbortionObstetrics--SurgeryBirth ControlReproductive RightsCanada
Christian Peeters and Bert Hölldobler's Experiments on Reproduction in Indian Jumping Ants (1991–1994)
By: Kelle Dhein
| Published: Mar 23, 2017
Between 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 Germ-Plasm: a Theory of Heredity (1893), by August Weismann
By: Yawen Zou
| Published: Jan 26, 2015
Friedrich Leopold August Weismann published Das Keimplasma: eine Theorie der Vererbung (The Germ-Plasm: a Theory of Heredity, hereafter The Germ-…
LiteratureWeismann, August, 1834-1914. Keimplasma. EnglishGerm CellsHeredityInheritance of acquired characters
Paul Kammerer (1880-1926)
By: Federica Turriziani Colonna
| Published: Nov 25, 2014
Paul Kammerer conducted experiments on amphibians and marine animals at the Vivarium, a research institute in Vienna, Austria, in the early twentieth…
Kammerer, Paul, 1880-1926Kammerer, Paul, 1880-1926. Streitfrage der Vererbung erworbener Eigenschaften. EnglishInheritance of acquired charactersAdaptationMidwife toads
Somatic Cell Nuclear Transfer in Mammals (1938-2013)
By: Zane Bartlett
| Published: Nov 04, 2014
In 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
Eric Wieschaus (1947- )
By: May Catherine, Justin M. Wolter
| Published: Apr 29, 2014
Eric Wieschaus studied how genes cause fruit fly larvae to develop in the US and Europe during the twentieth and twenty-first centuries. Using the…
Drosophila melanogasterGeneticsGenetic Screening
“The Intergenerational Effects of Fetal Programming: Non-genomic Mechanisms for the Inheritance of Low Birth Weight and Cardiovascular Risk” (2004), by Amanda J. Drake and Brian R. Walker
By: Carrie Keller
| Published: Nov 26, 2020
In 2004, Amanda J. Drake and Brian R. Walker published “The Intergenerational Effects of Fetal Programming: Non-genomic Mechanisms for the…
LiteratureReproductive HealthGestationFetal MonitoringFetal Distress
Adib Jatene (1929–2014)
By: Daniella Caudle
| Published: Apr 20, 2017
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--Abnormalities