embryo

Illustration of two rats, one male and one female, that are surgically joined. The male has a uterus transplanted in, and both have embryos transplanted into their uteruses.

Study that Impregnated Male Rats Stirs Controversy

lewis wolpert obituary developmental biology embryo 14 day rule

High Profile Developmental Biologist Lewis Wolpert Dies at 91

Panel Lays Out Guidelines for CRISPR-Edited Human Embryos

Image of the Day: Brainless Frogs

A Woman of Firsts, Early 20th Century

China Sentences Gene-Editing Scientist to Three Years in Jail

Photos of the Year

Early Embryo Models Generated from Mouse Stem Cells

human embryo

First Human–Monkey Chimeras Developed in China

chinese pond turtle embryo temperature-dependent sex climate change

Turtle Embryos May Have a Say in Deciding Their Sex

Scientists Push for a Moratorium on Human Germline Editing

Ultrasound of twins

Doctors Report World’s Second Case of “Semi-Identical” Twins

Trending

Kirsty Wright is searching for evidence in a missing persons investigation. She is wearing a blue shirt and glasses. Behind her is dense vegetation and police procedural tape.

How a Forensic Biologist Exposed a DNA Lab Scandal That Shook Australia

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

Universe 25 Experiment

Hands holding an older woman’s hands.

One Gene Influences 75 Percent of Alzheimer’s Disease Cases

A picture of Rohita Roy, a postdoc at Stanford University.

Postdoc Portrait: Rohita Roy

Multimedia

The Scientist Placeholder Image

From Data to Discovery: Omics in Therapeutic Innovation

The Scientist Placeholder Image

Exploring Organoids for Disease Modeling Research

February 2026

A Stubborn Gene, a Failed Experiment, and a New Path

When experiments refuse to cooperate, you try again and again. For Rafael Najmanovich, the setbacks ultimately pushed him in a new direction.

View this Issue
Human-Relevant In Vitro Models Enable Predictive Drug Discovery

Advancing Drug Discovery with Complex Human In Vitro Models

Stemcell Technologies
Redefining Immunology Through Advanced Technologies

Redefining Immunology Through Advanced Technologies

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Ensuring Regulatory Compliance in AAV Manufacturing with Analytical Ultracentrifugation

Beckman Coulter Logo
Conceptual multicolored vector image of cancer research, depicting various biomedical approaches to cancer therapy

Maximizing Cancer Research Model Systems

bioxcell

Products

Sino Biological Logo

Sino Biological Pioneers Life Sciences Innovation with High-Quality Bioreagents on Inside Business Today with Bill and Guiliana Rancic

Sino Biological Logo

Sino Biological Expands Research Reagent Portfolio to Support Global Nipah Virus Vaccine and Diagnostic Development

Beckman Coulter

Beckman Coulter Life Sciences Partners with Automata to Accelerate AI-Ready Laboratory Automation

Refeyn logo

Refeyn named in the Sunday Times 100 Tech list of the UK’s fastest-growing technology companies