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The Southern Gastric-Brooding Frog
By: Christopher Rojas
| Published: Jan 26, 2015
The Southern Gastric-Brooding Frog (Rheobatrachus silus) was an aquatic frog that lived in south-east Australia. In 2002, the International Union…
Sexual behavior in animalsReproductive BehaviorExtinction (Biology)Extinct animalsCloning
Paul Kammerer's Experiments on the Midwife Toad (1905-1910)
By: Federica Turriziani Colonna
| Published: Dec 30, 2014
In the first decade of the twentieth century, Paul Kammerer, a zoologist working at the Vivarium in Vienna, Austria, conducted research on…
Kammerer, Paul, 1880-1926Midwife toadsKammerer, Paul, 1880-1926. Streitfrage der Vererbung erworbener Eigenschaften. EnglishInheritance of acquired charactersAdaptation
Johann Friedrich Meckel, the Younger (1781-1833)
By: Lindsey O'Connell
| Published: Oct 11, 2013
Johann Friedrich Meckel studied abnormal animal and human anatomy in nineteenth century Germany in an attempt to explain embryological development.…
PeopleAnatomy, ComparativeEmbryologyBirth Defectsfetal development
Alexis Carrel's Immortal Chick Heart Tissue Cultures (1912-1946)
By: Lijing Jiang
| Published: Jul 03, 2012
In an effort to develop tissue culture techniques for long-term tissue cultivation, French surgeon and biologist Alexis Carrel, and his associates,…
Carrel, Alexis, 1873-1944Tissue cultureCellsGerm CellsEmbryos
Sterilization Act of 1924
By: Nathalie Antonios
| Published: Apr 14, 2011
The passage of the Virginia Sterilization Act of 1924 demonstrates how science has been used to drive policy throughout history. In the case of the…
LawEugenicsReproductionpublic health
The Interpretation of Development and Heredity (1930), by Edward Stuart Russell
By: Mark A. Ulett
| Published: Jan 31, 2011
First published in 1930 and reprinted in 1972, Edward Stuart Russell's The Interpretation of Development and Heredity is a work of philosophical and…
LiteratureHeredityPublications
Hematopoietic Stem Cell Transplantation
By: Angel Lopez
| Published: Oct 11, 2010
The purpose of regenerative medicine, especially tissue engineering, is to replace damaged tissue with new tissue that will allow the body to resume…
TechnologyStem CellsRegenerationmedicine
George Herbert Hitchings (1905–1998)
By: Eboni E. Andersun
| Published: Jun 25, 2024
George Herbert Hitchings researched and developed medications that targeted specific parts of DNA replication processes to treat cancers and various…
Nucleoside analogDNA ReplicationDrug DevelopmentAcyclovirPharmacology
Leuprorelin as a Treatment for Endometriosis
By: Anna Guerrero, Emily Santora
| Published: Nov 30, 2019
Leuprolide acetate, or leuprorelin, is a manufactured drug that has been prescribed as a treatment for endometriosis, a medical condition in which…
EndometriosisEndometriumDrug utilizationDrugs--AdministrationUterus
Gail Roberta Martin (1944– )
By: Lance Villarreal
| Published: Jul 31, 2019
In the twentieth and early twenty-first centuries, Gail Roberta Martin specialized in biochemistry and embryology, more specifically cellular…
EmbryosEmbryos--PhysiologyEmbryos--AnatomyBlastocystRetrovirus Infections