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Hensen's Node
By: Maria Doty, Corinne DeRuiter
| Published: Jun 21, 2011
A node, or primitive knot, is an enlarged group of cells located in the anterior portion of the primitive streak in a developing gastrula. The node…
GastrulationChicks
Gastrulation in Gallus gallus (Domestic Chicken)
By: Corinne DeRuiter, Maria Doty
| Published: Jun 21, 2011
Gastrulation is an early stage in embryo development in which the blastula reorganizes into three germ layers: the ectoderm, the mesoderm, and the…
GastrulationChicks
August Antonius Rauber (1841-1917)
By: Maria Doty
| Published: Jun 10, 2011
August Antonius Rauber was an embryologist and anatomist who examined gastrulation in avian embryos. He examined the formation of the blastopore,…
PeopleGastrulationChicks
Hamburger-Hamilton Staging Series (1951)
By: Maria Doty
| Published: Jun 10, 2011
In 1951 Viktor Hamburger and Howard Hamilton created an embryonic staging series from a combination of photographs and drawings from other…
Chicks
"Induction and Patterning of the Primitive Streak, an Organizing Center of Gastrulation in the Amniote" (2004), by Takashi Mikawa, Alisa M. Poh, Kristine A. Kelly, Yasuo Ishii, and David E. Reese
By: Inbar Maayan
| Published: Apr 14, 2011
"Induction and Patterning of the Primitive Streak, an Organizing Center of Gastrulation in the Amniote," (hereafter referred to as "Induction")…
LiteraturePublicationsGastrulationChicksdifferentiation
"The Effects of Wing Bud Extirpation on the Development of the Central Nervous System in Chick Embryos" (1934), by Viktor Hamburger
By: Lijing Jiang
| Published: Nov 22, 2010
German embryologist Viktor Hamburger came to the US in 1932 with a fellowship provided by the Rockefeller Foundation. Hamburger started his research…
LiteraturePublicationsExperimentsNervous SystemChicks
Nicole Marthe Le Douarin (1930- )
By: Brad Jacobson
| Published: Nov 17, 2010
Nicole Marthe Le Douarin was one of the first progressive female pioneers of developmental and embryological research. Some of her most notable and…
PeopleBiographyChicksBirds
Images of Embryos in Life Magazine in the 1950s
By: Olivia Conley
| Published: Jun 30, 2010
Embryonic images displayed in Life magazine during the mid-twentieth century serve as a representation of technological advances and the growing…
PublicationsReproductionChicksHuman DevelopmentFetus
Reassessment of Carrel's Immortal Tissue Culture Experiments
By: Lijing Jiang
| Published: Jun 28, 2010
In the 1910s, Alexis Carrel, a French surgeon and biologist, concluded that cells are intrinsically immortal. His claim was based on chick-heart…
ContextCarrel, Alexis, 1873-1944Tissue Culture TechniquesTissue cultureChicks
Christian Heinrich Pander (1794-1865)
By: Stephen C. Ruffenach
| Published: Jul 22, 2009
Christian Heinrich Pander, often remembered as the father of embryology, also explored the fields of osteology, zoology, geology, and anatomy. He was…
PeopleBiographyChicks