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Zhang Lizhu (1921- )
By: Lijing Jiang
| Published: Aug 16, 2011
Zhang Lizhu is a Chinese gynecologist and researcher. For most of her career, she worked in the Peking Medical College Third Hospital, renamed in…
PeopleReproductionBiographyFertilization
“Exposure to Perfluoroalkyl Substances in a Cohort of Women Firefighters and Office Workers in San Francisco” (2020), by Jessica Trowbridge and Colleagues
By: Federico Mellani
| Published: Aug 14, 2025
In 2020, Jessica Trowbridge and colleagues published “Exposure to Perfluoroalkyl Substances in a Cohort of Women Firefighters and Office Workers in…
FirefightersFluorocarbonsOccupational ExposureFire fightersPerfluorinated chemicals
Women’s Field Army (1936–1948)
By: Emily Santora, Alexis Darby
| Published: Jul 31, 2021
From 1936 to 1945, the Women’s Field Army, hereafter the WFA, educated women in the US on the early symptoms, prevention, and treatment of…
OrganizationCancercarcinomapublic healthUterine Cervical Neoplasms
Jerold Lucey (1926– )
By: Arianna Bradley
| Published: Jun 12, 2017
Jerold Lucey studied newborn infants in the United States in the twentieth century. In the 1960s and 1970s, Lucey studied phototherapy as a treatment…
PhototherapyJaundiceJaundice, NeonatalNeonatologyBilirubin
Leonard Colebrook (1883–1967)
By: Safiya Shaikh
| Published: May 25, 2017
Leonard Colebrook was a physician who researched bacteria and infections in England during the twentieth century. In 1936, Colebrook deployed the…
BacteriaInfectionsPuerperal septicemiaChildbirthBurn care units
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)
Edward Charles Dodds (1899-1973)
By: Alexis Abboud
| Published: Mar 06, 2017
Edward Charles Dodds researched the function and effects of natural and artificial hormones on the endocrine system in England during the twentieth…
Dodds, E. C. (Edward Charles), 1899-EndocrinologyEstrogenDiethylstilbestrolDiethylstilbestrol--Carcinogenicity
Isotretinoin (Accutane) as a Teratogen
By: Chanapa Tantibanchachai
| Published: Jul 20, 2014
Isotretinoin is a molecule and a byproduct (metabolite) of vitamin A, and in greater than normal amounts in pregnant women, it can cause fetal…
Teratogenic agentsVitamin AIsotretinoinAbnormalities, HumanTeratogens
Ernst Haeckel's Biogenetic Law (1866)
By: M. Elizabeth Barnes
| Published: May 03, 2014
The biogenetic law is a theory of development and evolution proposed by Ernst Haeckel in Germany in the 1860s. It is one of several recapitulation…
EvolutionDevelopmental BiologyEmbryologyAnatomy, Comparative
Johann Friedrich Blumenbach (1752-1840)
By: Kate MacCord
| Published: Jan 22, 2014
In eighteenth century Germany, Johann Friedrich Blumenbach studied how individuals within a species vary, and to explain such variations, he proposed…
AnthropologyAnatomy, ComparativeVariation (Biology)EmbryosDevelopmental Biology