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Aristotle (384-322 BCE)
By: Dorothy Regan Haskett, Valerie Racine, Joanna Yang
| Published: Jul 07, 2016
Aristotle studied developing organisms, among other things, in ancient Greece, and his writings shaped Western philosophy and natural science for…
GreecedevelopmentphilosophyPlatoPhysics
Theodor Heinrich Boveri (1862-1915)
By: Inbar Maayan
| Published: Mar 03, 2011
Theodor Boveri investigated the mechanisms of heredity. He developed the chromosomal theory of inheritance and the idea of chromosomal individuality…
PeopleHeredityBiography
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
NuvaRing
By: Molly Jacobson
| Published: Oct 13, 2022
The NuvaRing is a self-administered hormonal contraceptive device in the form of a flexible plastic ring that is inserted into the vagina. It…
TechnologyContraceptivesContraceptives, VaginalContraceptives industryContraceptive drugs
The Cell in Development and Inheritance (1900), by Edmund Beecher Wilson
By: Jane Maienschein, Abhinav Mishra
| Published: Jun 18, 2015
The Cell in Development and Inheritance, by Edmund Beecher Wilson, provided a textbook introduction to cell biology for generations of biologists in…
LiteratureCell organellesMitosisMeiosisCell Proliferation
“Effect of Air Quality on Assisted Human Reproduction” (2010), by Richard Legro, Mark V. Sauer, Gilbert L. Mottla, Kevin S. Richter, Xian Li, William C. Dodson, and Duanping Liao
By: Ajeet Bains
| Published: May 05, 2021
In the early 2000s, Richard S. Legro, Mark V. Sauer, Gilbert L. Mottla, Kevin S. Richter, William C. Dodson, and Duanping Liao studied the…
In vitro fertilizationFertilization in VitroIndoor air pollutionPollutionUrban pollution
Some of the Cells that Arise from Animal Gastrulas with Three Germ Layers
By: Chinami Michaels
| Published: Aug 21, 2014
From a developing embryos three primary germ layers, ectoderm (green), mesoderm (pink) and endoderm (yellow), a variety of differentiated cell type
MesodermGastrulationBlastulaGerm LayersEctoderm
Angelman Syndrome
By: Jonathan North
| Published: Aug 12, 2014
Angelman syndrome is a disorder in humans that causes neurological symptoms such as lack of speech, jerky movements, and insomnia. A human cell has…
Angelman syndromeGenomic imprintingHuman chromosome 15--AbnormalitiesHuman chromosome 15Happy Puppet Syndrome
Davis v. Davis (1992)
By: Mark Zhang, Jennifer E. Chapman
| Published: Oct 17, 2013
In Davis v. Davis (1992), the Supreme Court of Tennessee decided a dispute over cryopreserved preembryos in favor of Junior Lewis Davis, who sought…
LawFrozen human embryosFertilization in VitroAmerican Fertility SocietyConception
The Process of Implantation of Embryos in Primates
By: Justin M. Wolter
| Published: Mar 21, 2013
Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains…
FetusPregnancyEmbryologyDevelopmental BiologyEmbryos