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Q&A: Zika Damages Mouse Testes, Reduces Fertility
Ben Andrew Henry | Oct 31, 2016 | 4 min read
Michael Diamond of the Washington University School of Medicine in St. Louis and colleagues tracked the virus in the male mouse reproductive tract over several weeks.
Why Female Orgasm Evolved
Jef Akst | Aug 4, 2016 | 2 min read
The phenomenon may have arisen to trigger hormonal surges and drive ovulation, scientists propose.
Guppie Porn
The Scientist | Jul 31, 2016 | 1 min read
Biologist Carin Bondar delivers a TED talk about the wilder side of sex.
Embryo Watch
Jef Akst | May 5, 2016 | 2 min read
A new culture system allows researchers to track the development of human embryos in vitro for nearly two weeks.
A Scrambled Mess
Karen Schindler | May 1, 2016 | 10+ min read
Why do so many human eggs have the wrong number of chromosomes?
Meiotic Mysteries
Karen Schindler | Apr 30, 2016 | 2 min read
Understanding why so many human oocytes contain the wrong number of chromosomes
Obesogens
Kerry Grens | Nov 1, 2015 | 10+ min read
Low doses of environmental chemicals can make animals gain weight. Whether they do the same to humans is a thorny issue.
Fat Factors
Kerry Grens | Oct 31, 2015 | 1 min read
A mouse's exposure to certain environmental chemicals can lead the animal—and its offspring and grandoffspring—to be overweight.
Fertility Treatment Fallout
Jyoti Madhusoodanan | Jan 1, 2015 | 2 min read
Mouse offspring conceived by in vitro fertilization are metabolically different from naturally conceived mice.
Focus on Sex
Molly Sharlach | Dec 28, 2014 | 3 min read
In 2014, new research findings and guidelines brought increased attention to biological differences between males and females.
A Tale of Two Genitals
Bob Grant | Nov 5, 2014 | 1 min read
The genitalia of mammals and reptiles develop from two different tissues, but the structures share common genetic programs and molecular induction signals.
Semen Says
Rina Shaikh-Lesko | Jul 1, 2014 | 3 min read
Scientists report for the first time that a snail’s seminal fluid proteins can suppress the mating success of the male side of its hermaphroditic partner.
Week in Review: January 27–31
Tracy Vence | Jan 31, 2014 | 3 min read
Stimulus-triggered pluripotency; antioxidants speed lung tumor growth; the importance of seminal vesicles; how a plant pathogen jumps hosts
More than Sperm Support
Jef Akst | Jan 27, 2014 | 4 min read
Male mice lacking seminal vesicles father fewer offspring, and their sons suffer from abnormal metabolism into adulthood.
Week in Review: November 18–22
Tracy Vence | Nov 22, 2013 | 4 min read
Chilly mice develop more tumors; gut bacteria aid cancer treatment; two Y chromosome genes sufficient for assisted reproduction; HIV’s “invisibility cloak”
Male Mosquitoes Trigger Egg Production
Jef Akst | Oct 29, 2013 | 3 min read
Malaria-transmitting female Anopheles gambiae develop eggs upon mating as a result of a steroid hormone injected into them by males.
Putting the Men in Menopause
Jon Stone | Sep 1, 2013 | 3 min read
Can mating behavior explain the evolution of menopause in humans?
Why Women Lose Fertility
Daniel Levitis and Alan Cohen | Sep 1, 2013 | 5 min read
Mating behavior is an unlikely driver of women's reproductive aging.
Behavior Brief
Chris Palmer | Aug 5, 2013 | 5 min read
A round-up of recent discoveries in behavior research
Behavior Brief
Chris Palmer | Jul 8, 2013 | 5 min read
A round-up of recent discoveries in behavior research