Coral in shallow beach branching upward with blue fish in front
Corals Upend Longstanding Idea About Genetic Inheritance
Most animals can’t pass on mutations that arise spontaneously throughout their lives—but Elkhorn corals can.
Corals Upend Longstanding Idea About Genetic Inheritance
Corals Upend Longstanding Idea About Genetic Inheritance

Most animals can’t pass on mutations that arise spontaneously throughout their lives—but Elkhorn corals can.

Most animals can’t pass on mutations that arise spontaneously throughout their lives—but Elkhorn corals can.

germ cells
Pink rat pups piled on top of each other.
Rat Sperm Generated from Stem Cells
Alejandra Manjarrez | Apr 7, 2022
Researchers report they were able to make functional sperm in a dish, a feat previously only possible for mice.
Eight Proteins Turn Mouse Stem Cells into Egglike Cells
Ashley Yeager | Dec 16, 2020
The identification of the transcription factors that elicit oocyte growth will aid reproductive biology research and might help women with fertility issues, scientists say.  
Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells
Amy Schleunes | Mar 6, 2020
The controversial oogonial stem cells eluded a team of Swedish researchers who mapped high-quality tissue samples of the human ovary, prompting more questions about the cells’ existence.  
primordial germ cells
Stray Germ Cells May Seed Female-Biased Cancerous Cysts
Ashley Yeager | Apr 1, 2019
Similarities in gene expression hint at the origin of a certain type of pancreatic tumor that predominantly afflicts women.
Researchers Cryopreserve Coral Sperm
Catherine Offord | Feb 1, 2018
A project aims to preserve samples of the climate change–vulnerable animals for future restoration.
Sea Anemones Illuminate the Evolution of Embryo Development
Abby Olena | Sep 11, 2017
A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.
From Stem Cell to Oocyte In a Dish
Anna Azvolinsky | Oct 17, 2016
For the first time, scientists generate functional mouse eggs from stem cells in culture.
Sperm From Ovaries
Anna Azvolinsky | Jun 11, 2015
With the deletion of a single gene, female Japanese rice fish can produce sperm. 
Erasing Mitochondrial Mutations
Jenny Rood | Apr 23, 2015
Researchers develop a method to selectively remove mutated mitochondrial DNA from the murine germline and single-celled mouse embryos.
Mouse Eggs Made with Stem Cells
Dan Cossins | Oct 4, 2012
Researchers claim to have successfully transformed stem cells into viable mouse oocytes that produced healthy, fertile pups.
Lab-Grown Sperm
Cristina Luiggi | Aug 4, 2011
Healthy mice are born from germ cell precursors grown in vitro.