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Effects of Prenatal Alcohol Exposure on Cardiac Development
By: Erica O'Neil
| Published: Apr 30, 2011
A variety of developmental defects occur as a result of prenatal exposure to alcohol (ethanol) in utero. In humans, those defects are collectively…
fetal alcohol syndromeReproductionHuman Development
The Effects of Diethylstilbestrol on Embryonic Development
By: Tristan Cooper-Roth
| Published: Sep 12, 2010
Estrogen plays a key role in the regulation of gene transcription. This is accomplished by its ability to act as a ligand and to bind to specific…
DiethylstilbestrolEstrogenHuman Development
Ricardo Hector Asch (1947- )
By: Hilary Gilson
| Published: Jun 10, 2009
Ricardo Hector Asch was born 26 October 1947 in Buenos Aires, Argentina, to a lawyer and French professor, Bertha, and a doctor and professor of…
PeopleFertilityethicsBiography
John Spangler Nicholas (1895-1963)
By: Ellen M. DuPont
| Published: Jul 23, 2008
John Spangler Nicholas, an American biologist, was born on 10 March 1895 in Allegheny, Pennsylvania. He was the only child of Elizabeth Ellen…
PeopleBiographyMammalsAmphibians
Father Frank Pavone (1959- )
By: Katherine Brind'Amour
| Published: Feb 29, 2008
Father Frank Pavone, a key proponent of the Roman Catholic Church's pro-life movement, has devoted his life's work to ending abortion, euthanasia,…
PeoplereligionReproductionBiographyCatholicism
Pope John Paul II (1920-2005)
By: Benjamin Garcia, Katherine Brind'Amour
| Published: Nov 11, 2007
Pope John Paul II's views on abortion and embryology have been very influential to the Roman Catholic Church. He strictly forbade abortion and other…
religionReproductionCatholicismPopesAbortion
Syncytial Theory
By: Adam R. Navis
| Published: Oct 30, 2007
The syncytial theory of neural development was proposed by Victor Hensen in 1864 to explain the growth and differentiation of the nervous system.…
Hensen, Victor, 1835-1924Nervous SystemNeurons
"Selective Growth Stimulating Effects of Mouse Sarcoma on the Sensory and Sympathetic Nervous System of the Chick Embryo" (1951), by Rita Levi-Montalcini and Viktor Hamburger
By: Adam R. Navis
| Published: Oct 30, 2007
In "Selective Growth Stimulating Effects of Mouse Sarcoma on the Sensory and Sympathetic Nervous System of the Chick Embryo," Rita Levi-Montalcini…
Chick EmbryoExperimentsChicksMice
Luigi Luca Cavalli-Sforza (1922–2018)
By: Tea Zawilak
| Published: Aug 10, 2025
Luigi Luca Cavalli-Sforza (1922–2018) was a researcher whose work explored the relationships between human genetic diversity and historical…
genetic variationGenetic DriftAnthropologyHuman GeneticsPopulation genetics
“Fate of the Foreskin: A Study of Circumcision” (1949) by Douglas Gairdner
By: Matthew Tontonoz
| Published: Aug 09, 2025
In 1949, Douglas Gairdner, a pediatrician in Cambridge, England, published “Fate of the Foreskin: A Study of Circumcision,” hereafter, “Fate of the…
Circumcision, MaleForeskinHPV-31PhimosisForeskin--Surgery