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"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
Wilhelm Johannsen's Genotype-Phenotype Distinction
By: B. R. Erick Peirson
| Published: Dec 07, 2012
Wilhelm Johannsen in Denmark first proposed the distinction between genotype and phenotype in the study of heredity in 1909. This distinction is…
Johannsen, W. (Wilhelm), 1857-1927Genotype-environment interactionPhenotypeHeredityGenetics
Body Worlds
By: Britta Martinez
| Published: Nov 27, 2012
Body Worlds is an exhibition featuring plastinates, human bodies that have been preserved using a plastination process. First displayed in 1995 in…
OrganizationPlastinationHuman bodyAnatomical museumsHuman Anatomy
Gunther von Hagens' Plastination Technique
By: Britta Martinez
| Published: Oct 24, 2012
Plastination is a technique for preserving tissues, organs, and whole bodies for medical purposes and public display. Gunther von Hagens invented a…
TechnologyPlastinationHuman bodyAnatomical museumsHuman Anatomy
Epithelium
By: Kate MacCord
| Published: Oct 17, 2012
Frederik Ruysch, working in the Netherlands, introduced the term epithelia in the third volume of his Thesaurus Anatomicus in 1703. Ruysch created…
EpitheliumRuysch, Frederik, 1638-1731AnatomyCells--MorphologyHis, Wilhelm, 1831-1904
John Bertrand Gurdon (1933- )
By: Inbar Maayan, Sean Cohmer
| Published: Oct 11, 2012
Sir John Bertrand Gurdon further developed nuclear transplantation, the technique used to clone organisms and to create stem cells, while working in…
Cell nuclei--TransplantationCellsCloningStem CellsEmbryonic Stem Cells
Gastrulation in Mus musculus (common house mouse)
By: Justin M. Wolter
| Published: Oct 04, 2012
As mice embryos develop, they undergo a stage of development called gastrulation. The hallmark of vertebrate gastrulation is the reorganization of…
GastrulationMiceGerm CellsSomatic embryogenesisEmbryos
Mesenchyme
By: Kate MacCord
| Published: Sep 14, 2012
Mesenchyme is a type of animal tissue comprised of loose cells embedded in a mesh of proteins and fluid, called the extracellular matrix. The loose,…
MesenchymeGastrulationStem CellsMesenchymal Stem CellsEmbryology
Richard Woltereck's Concept of Reaktionsnorm
By: B. R. Erick Peirson
| Published: Sep 06, 2012
Richard Woltereck first described the concept of Reaktionsnorm (norm of reaction) in his 1909 paper 'Weitere experimentelle Untersuchungen uber Art-…
Woltereck, Richard, 1877-1944EvolutionDaphniaEmbryologyHeredity
Eduard Friedrich Wilhelm Pflüger (1829-1910)
By: Megan Kearl
| Published: Jun 22, 2012
Eduard Friedrich Wilhelm Pflüger was a physiologist known for his research on respiration, the respiratory quotient, experimenting on the effects of…
PeopleRespiratory quotientRespirationEmbryologyEmbryos