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Oliver Allison Ryder III (1946– )

By: Bailey Renee, Karen Love | Published: Sep 14, 2017

Oliver Allison Ryder studied chromosomal evolution and endangered species in efforts for wildlife conservation and preservation at the San Diego Zoo…

San Diego ZooEscherichia coliPrzewalski's horseQuaggaBenirschke, Kurt

Eugen Steinach (1861–1944)

By: Federica Turriziani Colonna, Claudia Nunez-Eddy | Published: Feb 16, 2017

Eugen Steinach researched sex hormones and their effects on mammals in the late nineteenth and early twentieth centuries in Europe. He experimented…

Hormones, SexGenerative organsGenital OrgansGonadal Steroid HormonesTesticular Hormones
An illustration of Rh incompatibility during pregnancy

Rh Incompatibility in Pregnancy - Image

By: Sarah Walls | Published: Aug 15, 2021

Rh factor is a protein found on the outside of Rh-positive red blood cells.

PregnancyRh-Hr Blood-Group SystemBlood Group IncompatibilityFetal Blood

Homunculus

By: Cera R. Lawrence | Published: Aug 13, 2008

The term homunculus is Latin for "little man." It is used in neurology today to describe the map in the brain of sensory neurons in each part of the…

Edwin Carlyle (Carl) Wood (1929–2011)

By: Whitney Alexandra Tuoti | Published: Apr 01, 2021

Edwin Carlyle Wood, also known as Carl Wood, was a physician who helped develop in vitro fertilization, or IVF, treatments. From 1964 to 1992, Wood…

EmbryologyEmbryogenesisZygotesEmbryo TransferHuman embryo

Effects of Prenatal Alcohol Exposure on Cardiac Development

By: Erica O'Neil | Published: Apr 30, 2011

A variety of developmental defects occur as a result of prenatal exposure to alcohol (ethanol) in utero. In humans, those defects are collectively…

fetal alcohol syndromeReproductionHuman Development

The Effects of Diethylstilbestrol on Embryonic Development

By: Tristan Cooper-Roth | Published: Sep 12, 2010

Estrogen plays a key role in the regulation of gene transcription. This is accomplished by its ability to act as a ligand and to bind to specific…

DiethylstilbestrolEstrogenHuman Development

William Thornton Mustard (1914-1987)

By: Daniella Caudle | Published: Feb 11, 2017

William Thornton Mustard was a surgeon in Canada during the twentieth century who developed surgical techniques to treat children who had congenital…

PoliomyelitisTransposition of Great VesselsHemolytic AnemiaBlood GroupsBlood Cells

"Mitochondrial DNA and Human Evolution" (1987), by Rebecca Louise Cann, Mark Stoneking, and Allan Charles Wilson

By: Dorothy R. Haskett | Published: Oct 10, 2014

In 1987 Rebecca Louise Cann, Mark Stoneking, and Allan Charles Wilson published Mitochondrial DNA and Human Evolution in the journal Nature. The…

LiteratureMitochondriaHuman EvolutionEvolutionHomo sapiens

Otto Mangold (1891-1962)

By: Megan Kearl | Published: Jun 02, 2010

Otto Mangold was an early twentieth century embryologist who specialized in the development of amphibian embryos. A major emphasis of his research…

PeopleOrganizers, EmbryonicBiographyAmphibians