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Gardasil HPV Vaccination Series

By: Alexis Darby, Grace Kim | Published: Jul 30, 2021

In 2006, United States pharmaceutical company Merck released the Gardasil vaccination series, which protected recipients against four strains of…

TechnologyHPV VaccinePapillomavirus InfectionsCervical CancerGenital Warts

Teratogens

By: Chanapa Tantibanchachai | Published: Jan 22, 2014

Teratogens are substances that may produce physical or functional defects in the human embryo or fetus after the pregnant woman is exposed to the…

Abnormalities, HumanFetusPregnancyTeratogenicity testingEmbryos

Camillo Golgi's Black Reaction for Staining Neurons

By: Isra Mishqat | Published: May 26, 2017

In 1873 Italy, Camillo Golgi created the black reaction technique, which enabled scientists to stain and view the structure of neurons, the…

TechnologyNeuronsAxonsDendritesSilver Nitrate

Paul Eugen Bleuler (1857–1939)

By: Jessica Resnick | Published: Apr 06, 2017

Paul Eugen Bleuler studied autism and schizophrenia, among other psychiatric disorders, throughout continental Europe in the early twentieth century…

Dementia PraecoxSchizophrenic DisordersSchizophreniaAutismAutism spectrum disorders

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

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…

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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