reproductive biology
Meiotic Mysteries
Meiotic Mysteries
Karen Schindler | May 1, 2016
Understanding why so many human oocytes contain the wrong number of chromosomes
A Scrambled Mess
A Scrambled Mess
Karen Schindler | May 1, 2016
Why do so many human eggs have the wrong number of chromosomes?
Obesogens
Obesogens
Kerry Grens | Nov 1, 2015
Low doses of environmental chemicals can make animals gain weight. Whether they do the same to humans is a thorny issue.
Fat Factors
Fat Factors
Kerry Grens | Nov 1, 2015
A mouse's exposure to certain environmental chemicals can lead the animal—and its offspring and grandoffspring—to be overweight.
Fertility Treatment Fallout
Fertility Treatment Fallout
Jyoti Madhusoodanan | Jan 1, 2015
Mouse offspring conceived by in vitro fertilization are metabolically different from naturally conceived mice.
Focus on Sex
Focus on Sex
Molly Sharlach | Dec 29, 2014
In 2014, new research findings and guidelines brought increased attention to biological differences between males and females.
A Tale of Two Genitals
A Tale of Two Genitals
Bob Grant | Nov 5, 2014
The genitalia of mammals and reptiles develop from two different tissues, but the structures share common genetic programs and molecular induction signals.
Semen Says
Semen Says
Rina Shaikh-Lesko | Jul 1, 2014
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
Week in Review: January 27–31
Tracy Vence | Jan 31, 2014
Stimulus-triggered pluripotency; antioxidants speed lung tumor growth; the importance of seminal vesicles; how a plant pathogen jumps hosts
More than Sperm Support
More than Sperm Support
Jef Akst | Jan 27, 2014
Male mice lacking seminal vesicles father fewer offspring, and their sons suffer from abnormal metabolism into adulthood.