A white laboratory mouse with its pups.
| 3 min read
By using genetic material from two male mice, researchers successfully created pups that survived to adulthood, offering insights into unisexual reproduction in mammals.

embryonic stem cells

A microscopy image of stem cells

An Ode to Stem Cells

An image of cells with the center stained green and some cells stained magenta over a black background.

Growing Milk-Secreting Mammary Organoids

One Protein to Rule Them All

Karyotype with most chromosomes in blue, one in red and green. 

Researchers Fuse Mouse Chromosomes in Scientific First

microscope image series showing synthetic embryo development

Mouse Embryo: No Sperm, Egg, or Uterus Required

Human Blastocyst-Like Structures Made in the Lab

Promoting Stem Cell Growth and Self-Renewal In Vitro

Most Members of Federal Fetal Tissue Ethics Panel Oppose Abortion

fetal tissue research stem cells

Scientists Grapple with US Restrictions on Fetal Tissue Research

esc embryonic stem cell fetal tissue

NIH Scientists Banned from Studying Human Fetal Tissue

First Mouse Embryos Made from Two Fathers

Mouse Stem Cells Made to Form Embryo-Like Structures

Cardiac Cell Transplants Help Monkeys’ Hearts

Studies Show How Cells Differentiate at Life’s Beginning

Image of the Day: Retinal Cell Implant

Researchers Argue for “Embryoid” Ethics Revamp

Meet the First Artificial Embryo Made From Stem Cells

Week in Review: October 17–21

Toward Making Sperm in the Lab

Legacies Left Behind in 2015

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Photo of John Calhoun crouches within his rodent utopia-turned-dystopia

Universe 25 Experiment

Large clumps of bacteria (pink) entrapped by webs of DNA (green) released by neutrophils in human urine.

When a Urinary Tract Infection Strikes, What Protects the Kidneys?

Illustration of a transparent, blue outlined synapse with red neurotransmitters passing between them. More out-of-focus blue neurons are in the background.

ALS Disturbs Sleep Prior to Symptom Onset

A spiral fossil with a snail-like shell.

Aerobic Bacteria May Predate Earth’s Oxygen Boom

Multimedia

Conceptual image of biochemical laboratory sample preparation showing glassware and chemical formulas in the foreground and a scientist holding a pipette in the background.

Taking the Guesswork Out of Quality Control Standards

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Image of a woman in a microbiology lab whose hair is caught on fire from a Bunsen burner.
April 1, 2025, Issue 1

Bunsen Burners and Bad Hair Days

Lab safety rules dictate that one must tie back long hair. Rosemarie Hansen learned the hard way when an open flame turned her locks into a lesson.

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Conceptual image of biochemical laboratory sample preparation showing glassware and chemical formulas in the foreground and a scientist holding a pipette in the background.

Taking the Guesswork Out of Quality Control Standards

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An illustration of PFAS bubbles in front of a blue sky with clouds.

PFAS: The Forever Chemicals

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Unlocking the Unattainable in Gene Construction

Unlocking the Unattainable in Gene Construction

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Concept illustration of acoustic waves and ripples.

Comparing Analytical Solutions for High-Throughput Drug Discovery

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Thermo Scientific™ Centrifuges with GreenCool Technology

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Singleron Biotechnologies and Hamilton Bonaduz AG Announce the Launch of Tensor to Advance Single Cell Sequencing Automation

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Zymo Research Launches Research Grant to Empower Mapping the RNome

Magid Haddouchi, PhD, CCO

Cytosurge Appoints Magid Haddouchi as Chief Commercial Officer