Women’s Cervical Mucus Prefers Some Sperm Over Others 
Women’s Cervical Mucus Prefers Some Sperm Over Others 
In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.
Women’s Cervical Mucus Prefers Some Sperm Over Others 
Women’s Cervical Mucus Prefers Some Sperm Over Others 

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

male infertility
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.
Image of the Day: Sperm Protectors
Image of the Day: Sperm Protectors
The Scientist Staff | Aug 18, 2017
Among their many functions, macrophages in mouse testes guard sperm against attacks by other immune cells. 
Sperm Stem Cell Maintenance
Sperm Stem Cell Maintenance
Jenny Rood | Mar 2, 2015
A missing transcription factor puts an early end to sperm production in mice.
It Takes Two
It Takes Two
Jef Akst | Nov 21, 2013
Two genes from the Y chromosome are sufficient to generate male mice capable of fathering healthy offspring via an assisted reproductive technique.
X Marks the Spot for Sperm Production
X Marks the Spot for Sperm Production
Chris Palmer | Jul 21, 2013
A new genetic analysis suggests the human X chromosome evolves rapidly and plays a specialized role in sperm production.
Loss of Microtubule Regulator Blocks Sperm Maturation
Sabrina Richards | May 24, 2012
New research suggests that controlling cytoskeletal dynamics in sperm accessory cells may help regulate male fertility.