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Amniocentesis Prior to 1980
By: Kristin Kelley
| Published: Sep 02, 2010
The extraembryonic membranes that surround and originate from the embryos of vertebrates such as birds, reptiles, and mammals are crucial to their…
AmniocentesisReproductionFetus
Francis Galton (1822-1911)
By: Cera R. Lawrence
| Published: Apr 06, 2011
Sir Francis Galton was a British science writer and amateur researcher of the late nineteenth century. He contributed greatly to the fields of…
PeopleGalton, Francis, 1822-1911GeneticsReproductionBiography
Chorionic Villus Sampling
By: Katherine Brind'Amour
| Published: Jan 21, 2009
Chorionic villus sampling (CVS) is a test used for prenatal diagnosis. Safe to perform at an earlier stage in pregnancy than amniocentesis, CVS is…
TechnologyChorionic Villus SamplingChorionic Villi SamplingReproduction
Karl Oskar Illmensee (1939–)
By: Cheryl Lancaster
| Published: Feb 26, 2017
Karl Oskar Illmensee studied the cloning and reproduction of fruit flies, mice, and humans in the US and Europe during the twentieth and twenty-first…
CloningMolecular CloningClone CellsTwinsEmbryos
David Starr Jordan (1851-1931)
By: Jill Briggs
| Published: Jun 26, 2013
David Starr Jordan studied fish and promoted eugenics in the US during the late nineteenth and early twentieth centuries. In his work, he embraced…
EugenicsEvolutionEmbryosEmbryologyHeredity
Multi-Fetal Pregnancy
By: Corinne DeRuiter
| Published: Jan 01, 2012
In humans, multi-fetal pregnancy occurs when a mother carries more than one fetus during the pregnancy. The most common multi-fetal pregnancy is…
ReproductionFetusHuman Development
In the Womb: Identical Twins (2009), by National Geographic
By: Maggie Pingolt
| Published: Mar 08, 2012
National Geographic's documentary In the Womb: Identical Twins focuses on the prenatal development of human identical twins. Director Lorne Townend…
LiteratureTwinsDocumentary filmsTestosteroneMethylation
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 Y-Chromosome in Animals
By: Dorothy R. Haskett
| Published: May 28, 2015
The Y-chromosome is one of a pair of chromosomes that determine the genetic sex of individuals in mammals, some insects, and some plants. In the…
Y ChromosomeSex ChromosomesEmbryosDNAChromosomes
“Annual Research Review: Prenatal Stress and the Origins of Psychopathology: An Evolutionary Perspective” (2011), by Vivette Glover
By: Carrie Keller
| Published: May 02, 2020
In 2011, fetal researcher Vivette Glover published “Annual Research Review: Prenatal Stress and the Origins of Psychopathology: An Evolutionary…
LiteratureStress in adolescenceStress in youthPsychological StressPregnancy