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Edgar Allen and Edward A. Doisy's Extraction of Estrogen from Ovarian Follicles, (1923)
By: Brendan Van Iten
| Published: Mar 02, 2017
In the early 1920s, researchers Edgar Allen and Edward Adelbert Doisy conducted an experiment that demonstrated that ovarian follicles, which produce…
OvariesCorpus LuteumEndometriumEstrogenHormones, Sex
Wolbachia
By: Karine Prevot
| Published: Jan 29, 2015
Bacteria of the genus Wolbachia are bacteria that live within the cells of their hosts. They infect a wide range of arthropods (insects, arachnids…
WolbachiaBacteriaHost-bacteria relationshipsHost-parasite relationshipsArthropods
Medical Vibrators for Treatment of Female Hysteria
By: Rainey Horwitz
| Published: Feb 29, 2020
During the late 1800s through the early 1900s, physicians administered pelvic massages involving clitoral stimulation by early electronic vibrators…
Vibrators (Massage)VibratorsHysteriaHysteria--Early works to 1900Orgasm
Meiosis in Humans
By: Inbar Maayan
| Published: Mar 24, 2011
Meiosis, the process by which sexually-reproducing organisms generate gametes (sex cells), is an essential precondition for the normal formation of…
MeiosisReproductionHuman Development
Sexology (1904) by William Henry Walling
By: Rainey Horwitz
| Published: Jul 12, 2021
In 1904, physician William Henry Walling published Sexology, a family medicine reference book. In his book, Walling proposed that his guidance would…
LiteratureMasturbationCoitus interruptusSexSexology
The Time Has Come: A Catholic Doctor's Proposals to End the Battle over Birth Control (1963), by John Rock
By: Christina Raup
| Published: Jun 10, 2010
In 1963, Roman Catholic fertility doctor John Rock published The Time Has Come: A Catholic Doctor's Proposals to End the Battle over Birth Control, a…
LiteratureContraceptionPublicationsreligionReproduction
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
Life's Greatest Miracle (2001), by Julia Cort and NOVA
By: Inbar Maayan
| Published: Nov 20, 2010
The Public Broadcasting Station (PBS) documentary Life's Greatest Miracle (abbreviated Miracle, available at http://www.pbs.org/wgbh/nova/miracle/…
LiteratureHuman DevelopmentReproductionMovies
Parasitic Twins
By: Corinne DeRuiter
| Published: Aug 16, 2011
Parasitic twins, a specific type of conjoined twins, occurs when one twin ceases development during gestation and becomes vestigial to the fully…
Twins, ConjoinedReproductionFetusCongenital DisordersHuman Development
George Nicholas Papanicolaou (1883–1962)
By: Patsy Ciardullo
| Published: Apr 06, 2017
George Nicholas Papanicolaou developed the Pap test in the United States during the twentieth century. The Pap test is a diagnostic procedure used to…
Pap TestExfoliative cytologyCervical CancerMenstrual CycleUterine Cancer