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Elizabeth Dexter Hay (1927–2007)
By: Kevin Gleason
| Published: Jul 26, 2017
Elizabeth Dexter Hay studied the cellular processes that affect development of embryos in the US during the mid-twentieth and early twenty-first…
Electron microscopesExtracellular matrixCorneaCollagenRadioactive substances
Paul Kammerer's Experiments on the Midwife Toad (1905-1910)
By: Federica Turriziani Colonna
| Published: Dec 30, 2014
In the first decade of the twentieth century, Paul Kammerer, a zoologist working at the Vivarium in Vienna, Austria, conducted research on…
Kammerer, Paul, 1880-1926Midwife toadsKammerer, Paul, 1880-1926. Streitfrage der Vererbung erworbener Eigenschaften. EnglishInheritance of acquired charactersAdaptation
"Genetic Evidence Equating SRY and the Testis-Determining Factor" (1990), by Phillippe Berta et al.
By: Troy Cox
| Published: Jan 10, 2014
In the late 1980s, Peter Goodfellow in London, UK led a team of researchers who showed that the SRY gene in humans codes a protein that causes testes…
TestisY ChromosomeEmbryosChromosomesSex Chromosomes
Artificial Parthenogenesis and Fertilization (1913), by Jacques Loeb
By: Karen Wellner
| Published: Jun 15, 2010
Jacques Loeb is best known for his embryological work investigating parthenogenesis in invertebrates. Artificial Parthenogenesis and Fertilization is…
LiteratureParthenogenesisPublicationsFertilization
The Marine Biological Laboratory Embryology Course
By: Jane Maienschein
| Published: Oct 24, 2007
The Marine Biological Laboratory (MBL) in Woods Hole, Massachusetts, began in 1888 to offer opportunities for instruction and research in biological…
OrganizationsMarine Biological Laboratory (Woods Hole, Mass.)EmbryologyMarine laboratoriesWhitman, Charles Otis, 1842-1910
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
In the Womb (2005), by Toby Mcdonald and National Geographic Channel
By: Inbar Maayan
| Published: Nov 20, 2010
Written, produced, and directed by Toby Mcdonald, the 2005 National Geographic Channel film In the Womb uses the most recent technology to provide an…
LiteratureHuman DevelopmentReproductionMoviesFetus
Studies of Thalidomide's Effects on Rodent Embryos from 1962-2008
By: Joanna Yang, Chanapa Tantibanchachai
| Published: Mar 07, 2014
Thalidomide is a sedative drug introduced to European markets on 1 October 1957 after extensive testing on rodent embryos to ensure its safety. Early…
ContextTeratogenicity testingAbnormalities, HumanThalidomide--Side effectsThalidomide
Stephen Jay Gould (1941-2002)
By: M. Elizabeth Barnes
| Published: Feb 18, 2014
Stephen Jay Gould studied snail fossils and worked at Harvard University in Cambridge, Massachusetts during the latter half of the twentieth century…
Punctuated equilibrium (Evolution)Spandrel beamsOntogenyPhylogenyFossils
Mesoderm
By: Kate MacCord
| Published: Nov 26, 2013
Mesoderm is one of the three germ layers, groups of cells that interact early during the embryonic life of animals and from which organs and tissues…
MesodermGastrulationCell differentiationCellsTissues