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In 1951 Viktor Hamburger and Howard Hamilton created an embryonic staging series from a combination of photographs and drawings from other…
ChicksConrad Hal Waddington's "Experiments on the Development of Chick and Duck Embryos, Cultivated in vitro," published in 1932 in Philosophical…
Waddington, C. H. (Conrad Hal), 1905-1975ExperimentsChicksDucksThe developmental stages of the chick embryo were examined by Viktor Hamburger and Howard L. Hamilton in "A Series of Normal Stages in the…
Chick EmbryoExperimentsChicksGerman embryologist Viktor Hamburger came to the US in 1932 with a fellowship provided by the Rockefeller Foundation. Hamburger started his research…
LiteraturePublicationsExperimentsNervous SystemChicksEmbryonic images displayed in Life magazine during the mid-twentieth century serve as a representation of technological advances and the growing…
PublicationsReproductionChicksHuman DevelopmentFetusNerve growth factor (NGF) is a signaling protein and growth factor implicated in a wide range of development and maintenance functions. NGF was…
Nerve Growth FactorChicksA 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…
GastrulationChicksGastrulation is an early stage in embryo development in which the blastula reorganizes into three germ layers: the ectoderm, the mesoderm, and the…
GastrulationChicksIn this paper Viktor Hamburger and Rita Levi-Montalcini collaborated to examine the effects of limb transplantation and explantation on neural…
Chickens--EmbryosDevelopmental BiologyCell differentiationEmbryosLevi-Montalcini, RitaNicole Marthe Le Douarin was one of the first progressive female pioneers of developmental and embryological research. Some of her most notable and…
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