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The Effects of Gene Regulation on Aging in Caenorhabditis elegans (2003)

By: Dasia Garcia | Published: Feb 16, 2017

In 2003, molecular biology and genetics researchers Coleen T. Murphy, Steven A. McCarroll, Cornelia I. Bargmann, Andrew Fraser, Ravi S. Kamath, Julie…

Caenorhabditis elegansCaenorhabditisInsulin-like growth factor-binding proteinsIGF-Binding ProteinsGenetic regulation

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

John Tyler Bonner (1920- )

By: Mary E. Sunderland | Published: May 09, 2008

The establishment and growth of developmental-evolutionary biology owes a great debt to the work of John Tyler Bonner. Bonner's studies of cellular…

PeopleDictyosteliidaBiographyMorphogenesisMulticellularity

Pearl Luella Kendrick (1890–1980)

By: Maggie Zhou | Published: Dec 23, 2022

Pearl Luella Kendrick researched prevention for pertussis, commonly known as whooping cough, in Grand Rapids, Michigan, during the mid-1900s.…

Tuberculosis VaccinesPertussis vaccinesAmerican Public Health AssociationPublicationsViral vaccines

“Prenatal Stress, Glucocorticoids and the Programming of the Brain” (2001), by Leonie Welberg and Jonathan Seckl

By: Carrie Keller | Published: Sep 24, 2020

In 2001, researchers Leonie Welberg and Jonathan Seckl published the literature review “Prenatal Stress, Glucocorticoids, and the Programming of the…

LiteratureFetal malnutritionFetal behaviorPrenatal influencesPrenatal Care

Julia Barlow Platt (1857-1935)

By: Karina Ramirez | Published: Jun 27, 2016

Julia Barlow Platt studied neural crests in animal embryos and became involved in politics in the US during the nineteenth and twentieth centuries.…

DogfishNeural CrestNervous SystemCartilageGerm Layers
An illustration of a mitochondria

Mitochondria - Image

By: Anna Guerrero | Published: Feb 06, 2017

Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They are composed of an outer membrane and an inner membrane.

Cell organellesMitochondriaEukaryotic cellsMitochondrionOrganelles

The Process of Gastrulation in Frog Embryos

By: Chinami Michaels | Published: Dec 13, 2013

Illustration of the movement of the three hemispheres of cells, the animal cap (dark green) the marginal zone (lime green) and the ventral cap (yel

BlastulaGastrulationEctodermEndodermOrganisms

"Male Development of Chromosomally Female Mice Transgenic for Sry gene" (1991), by Peter Koopman, et al.

By: Troy Cox | Published: Jan 28, 2014

Early 1990s research conducted by Peter Koopman, John Gubbay, Nigel Vivian, Peter Goodfellow, and Robin Lovell-Badge, showed that chromosomally…

Y ChromosomeTestisEmbryosChromosomesSex Chromosomes

Biological Sex and Gender in the United States

By: Risa Aria Schnebly | Published: Jun 13, 2022

In the United States, most people are assigned both a biological sex and gender at birth based on their chromosomes and reproductive organs.…

GenderGender-nonconforming peopleGender transitionGender expressionGender Nonconformity