Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells
Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells
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.  
Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells
Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells

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.  

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.  

reproductive biology
Swamp Wallabies Can Have Two Separate Pregnancies at Once
Swamp Wallabies Can Have Two Separate Pregnancies at Once
Lisa Winter | Mar 3, 2020
Before the joey is born, another pregnancy has already started.
Endocrinologist and Reproductive Physiologist Wayne Bardin Dies
Endocrinologist and Reproductive Physiologist Wayne Bardin Dies
Catherine Offord | Nov 18, 2019
Bardin’s work helped lead to the development of long-acting contraceptive devices for women.
Human Testicles Contain Endocannabinoid System Components
Human Testicles Contain Endocannabinoid System Components
Ruth Williams | Sep 19, 2019
Proteins that synthesize, bind, and degrade endocannabinoids are present in the body’s sperm factories, suggesting that the use of cannabis may directly affect them.
Researchers Develop New Method for Sexing Sperm
Researchers Develop New Method for Sexing Sperm
Katarina Zimmer | Aug 13, 2019
Scientists found they could sort mouse sperm prior to IVF by treating semen with a drug that selectively slows down X-bearing cells.
Fruit Flies Hide Their Eggs in Plain View
Fruit Flies Hide Their Eggs in Plain View
Karl Gruber | Jun 1, 2019
Chemical cues help Drosophila mask their eggs from predators.
Doctors Report World’s Second Case of “Semi-Identical” Twins
Doctors Report World’s Second Case of “Semi-Identical” Twins
Catherine Offord | Feb 28, 2019
The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.
Spotted Seatrout Continued to Spawn During and After Hurricane Harvey
Spotted Seatrout Continued to Spawn During and After Hurricane Harvey
Jef Akst | Nov 16, 2018
Researchers recovered audio recordings of the fish’s mating calls in the eye of the storm.
Image of the Day: Plundered Plover
Image of the Day: Plundered Plover
Jef Akst | Nov 9, 2018
Nest predation of shorebirds that raise young in the Arctic are up threefold since the mid-20th century, and climate change may be to blame, according to a study.
Genetic Risk Factor for Erectile Dysfunction Identified
Genetic Risk Factor for Erectile Dysfunction Identified
Ashley P. Taylor | Oct 9, 2018
Researchers believe the genetic locus affects the regulation of another gene involved in sexual function.