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Retinoids As Teratogens
By: Chanapa Tantibanchachai
| Published: Feb 28, 2014
Vitamin A (retinol) is an essential vitamin in the daily functioning of human beings that helps regulate cellular differentiation of epithelial…
RetinoidsVitamin A in the bodyTeratogenicity testingAbnormalities, HumanTeratogenic agents
"The Development of the Pronephros during the Embryonic and Early Larval Life of the Catfish
(Ictalurus punctatus)" (1932), by Rachel L. Carson
By: Karen Wellner
| Published: Feb 28, 2014
Rachel L. Carson studied biology at Johns Hopkins University in Maryland and graduated in 1933 with an MA upon the completion of her thesis, The…
LiteratureDevelopmental BiologyChannel CatfishEmbryosMorphogenesis
A Fate Map of the Chick Embryo
By: Chinami Michaels
| Published: Feb 26, 2014
A 3-D fate map of the chicken (Gallus gallus) embryo with the prospective point of ingression and yolk.
GastrulationBlastodermChickensEpiblastPrimitive Streak
The Blastoderm in Chicks During Early Gastrulation
By: Chinami Michaels
| Published: Feb 26, 2014
This image shows a chicken (Gallus gallus) embryo undergoing gastrulation in stage four (18-19 hrs after laying) according to the Hamburger-Hamilto
GastrulationBlastodermChickensEpiblastPrimitive Streak
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
Carl Richard Moore (1892-1955)
By: Mary Drago
| Published: Feb 18, 2014
Carl Richard Moore was a professor and researcher at the University of Chicago in Chicago, Illinois who studied sex hormones in animals from 1916…
Moore, Carl R. (Carl Richard), 1892-1955Intersexuality in animalsIntersex peopleHormones, SexSex Differentiation
The US President's Council on Bioethics (2001-2009)
By: Ceara O'Brien
| Published: Feb 18, 2014
The US President's Council on Bioethics was an organization headquartered in Washington D.C. that was chartered to advise then US President George W…
OrganizationbioethicsAdvisory boardsStem CellsEmbryonic Stem Cells
Dizhou Tong (1902-1979)
By: Yawen Zou
| Published: Feb 18, 2014
Dizhou Tong, also called Ti Chou Tung, studied marine animals and helped introduce and organize experimental embryology in China during the twentieth…
Marine BiologyCell nuclei--TransplantationEmbryology, ExperimentalDevelopmental BiologyEmbryos
Endothelium
By: Kate MacCord
| Published: Jan 28, 2014
The endothelium is the layer of cells lining the blood vessels in animals. It weighs more than one kilogram in adult humans, and it covers a surface…
EndotheliumTissuesEpitheliumCellsVascular endothelium
Fetal Alcohol Syndrome (FAS)
By: Erica O'Neil
| Published: Jan 28, 2014
The concept Fetal Alcohol Syndrome (FAS) refers to a set of birth defects that occur in children born to mothers who abused alcohol during pregnancy…
fetal alcohol syndromeAbnormalities, HumanCentral Nervous SystemalcoholPregnancy