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"Viable Offspring Derived from Fetal and Adult Mammalian Cells" (1997), by Ian Wilmut et al.
By: Zane Bartlett
| Published: Oct 10, 2014
In the 1990s, Ian Wilmut, Jim McWhir, and Keith Campbell performed experiments while working at the Roslin Institute in Roslin, Scotland. Wilmut,…
CloningMolecular CloningClone CellsCampbell, Keith, 1954-2012Roslin Institute
The Role of the Notch signaling pathway in Somitogenesis
By: Justin M. Wolter
| Published: Mar 23, 2014
Among other functions, the Notch signaling pathway contributes to the development of somites in animals. It involves a cell signaling mechanism with…
Notch genesNotch ProteinsReceptors, NotchNotch Receptors
Christiane Nusslein-Volhard (1942- )
By: May Catherine, Jack Resnik
| Published: Feb 16, 2012
Christiane Nusslein-Volhard studied how genes control embryonic development in flies and in fish in Europe during the twentieth and twenty-first…
DrosophilaEmbryologyGenesMorphogenesisRNA polymerases
The Gradient Theory
By: Mary E. Sunderland
| Published: Aug 01, 2009
The gradient theory is recognized as Charles Manning Child's most significant scientific contribution. Gradients brought together Child's interest…
Regeneration
“An Extra-Uterine System to Physiologically Support the Extreme Premature Lamb” (2017), by Emily Partridge, Marcus Davey, Matthew Hornick, Patrick McGovern, Ali Mejaddam, Jesse Vrecenak, Carmen Mesas-Burgos, Aliza Olive, Robert Caskey, et al.
By: Aubrey Pinteric
| Published: Jun 13, 2025
In April 2017, Alan Flake and colleagues published “An Extra-Uterine System to Physiologically Support the Extreme Premature Lamb,” hereafter “An…
Premature BirthbioethicsArtificial OrgansFetus--DevelopmentExtracorporeal membrane oxygenation
Intraspecies Chimeras Produced in Laboratory Settings (1960-1975)
By: Sarah Taddeo
| Published: Nov 25, 2014
When cells-but not DNA-from two or more genetically distinct individuals combine to form a new individual, the result is called a chimera. Though…
ContextChimerismEmbryosEmbryonic Stem CellsMosaicism
"On the Induction of Embryonic Primordia by Implantation of Organizers from Different Species" (1924), Hilde Mangold's Dissertation
By: Megan Kearl, Kate MacCord
| Published: Dec 19, 2012
Hilde Proscholdt Mangold was a doctoral student at the Zoological Institute at the University of Freiburg in Freiburg, Germany, from 1920-1923.…
LiteratureEmbryosTrembley, Abraham, 1710-1784GastrulationEmbryology
Countdown to Life: The Extraordinary Making of You (2015), by the British Broadcasting Corporation and The Open University
By: Jessica Cartwright
| Published: Nov 21, 2017
In 2015, the British Broadcasting Corporation (BBC) partnered with The Open University to produce the three-part documentary series, Countdown to…
LiteratureConceptionGestationReproductionPhysiology
Nerve Growth Factor
By: Adam R. Navis
| Published: Oct 30, 2007
Nerve growth factor (NGF) is a signaling protein and growth factor implicated in a wide range of development and maintenance functions. NGF was…
Nerve Growth FactorChicks
De ovi mammalium et hominis genesi (1827), by Karl Ernst von Baer
By: Federica Turriziani Colonna
| Published: Feb 09, 2017
De ovi mammalium et hominis genesi (On the Genesis of the Ovum of Mammals and of Men) is an 1827 pamphlet by Karl Ernst von Baer about the anatomical…
LiteratureBaer, Karl Ernst von, 1792-1876developmentAnatomy, ComparativeGerm Cells