Females Gain Ground as Biomedical Research Subjects
Females Gain Ground as Biomedical Research Subjects
A study finds improvement in the proportion of scientific projects that include both sexes, but analyzing results by sex is not routine.
Females Gain Ground as Biomedical Research Subjects
Females Gain Ground as Biomedical Research Subjects

A study finds improvement in the proportion of scientific projects that include both sexes, but analyzing results by sex is not routine.

A study finds improvement in the proportion of scientific projects that include both sexes, but analyzing results by sex is not routine.

sex
Sex Promotes Lasting Memories in Female Flies
Sex Promotes Lasting Memories in Female Flies
Ruth Williams | Nov 20, 2019
A protein present in the ejaculate of male fruit flies activates long-term memory formation in the brains of their female partners.
Giant Study Helps Clarify Role of Genes in Same-Sex Sex
Giant Study Helps Clarify Role of Genes in Same-Sex Sex
Emma Yasinski | Aug 29, 2019
The largest study of its kind to date estimates that genetics accounts for at most 8–25 percent of variation in whether or not a person reports engaging in non-heterosexual behaviors.
Image of the Day: Spider Sex
Image of the Day: Spider Sex
Nicoletta Lanese | Aug 26, 2019
Funnel-web spiders change the timing of their distinct courtship behavior depending on what microbes they’re carrying.
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.
Turtle Embryos May Have a Say in Deciding Their Sex
Turtle Embryos May Have a Say in Deciding Their Sex
Katarina Zimmer | Aug 1, 2019
In a species of freshwater turtle, embryos can move toward warmer or cooler environments within the egg and thus help choose their sexual destiny, but not all experts are convinced.
Why Chimpanzees Have Big Testes, and Mandrills Have Small Ones
Why Chimpanzees Have Big Testes, and Mandrills Have Small Ones
Katarina Zimmer | Apr 16, 2019
For primates, males’ fancier ornaments are linked with smaller testes, according to a new comparative study.
Larger Hermit Crab Penises May Prevent Shell Theft
Larger Hermit Crab Penises May Prevent Shell Theft
Abby Olena | Jan 16, 2019
Members of species with shells they must hold onto for survival have larger sexual tubes than those with less precious private property.
Men React to Repeated Painful Experiences Differently than Women Do
Men React to Repeated Painful Experiences Differently than Women Do
Diana Kwon | Jan 14, 2019
Men’s pain tolerance decreases when exposed to a setting where they’ve previously had a painful experience.
Trump Administration’s Definitions of Sex Defy Science
Trump Administration’s Definitions of Sex Defy Science
Ashley P. Taylor | Oct 23, 2018
The government wants to limit a person’s sex to male or female as determined by genitalia at birth and genetics. It’s not so simple, say scientists.
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.
Fruit Fly Geneticist Bruce Baker Dies
Fruit Fly Geneticist Bruce Baker Dies
Diana Kwon | Jul 30, 2018
The Stanford University professor was known for his work on sex determination and courtship in flies.
 Researchers Look to Sex Pheromones to Trap an Invasive Snake
Researchers Look to Sex Pheromones to Trap an Invasive Snake
Steve Graff | Jul 1, 2018
The brown tree snake has wreaked havoc on the island of Guam, but one solution to the problem could lie in the serpent’s own physiology.
Fast-Tracking Sexual Maturation
Fast-Tracking Sexual Maturation
Ruth Williams | Nov 1, 2017
The brains and bodies of young female rats can be accelerated into puberty by the presence of an older male or by stimulation of the genitals.
Sexual Touch Promotes Early Puberty
Sexual Touch Promotes Early Puberty
Ruth Williams | Sep 21, 2017
The brains and bodies of young female rats can be accelerated into puberty by the presence of an older male or by stimulation of the genitals.
Snake Sex Determination Dogma Overturned
Snake Sex Determination Dogma Overturned
Abby Olena | Jul 6, 2017
Researchers find that boas and pythons use an XY sex chromosome system, rather than the previously assumed ZW system found in some other snakes.
Common STD May Have Come from Neanderthals
Common STD May Have Come from Neanderthals
Bob Grant | Oct 19, 2016
Cross-species trysts likely spread human papillomavirus (HPV) to Homo sapiens, according to new research.
Zika Update
Zika Update
Kerry Grens | Aug 17, 2016
More local transmission within the U.S.; babies born with costly birth defects; virus persists in a patient’s semen for six months
Hot Off the Presses
Hot Off the Presses
Bob Grant | Aug 1, 2016
Idiot Brain, Wild Sex, Why Diets Make Us Fat, and The Ethics of Invention
Guppie Porn
Guppie Porn
The Scientist Staff | Jul 31, 2016
Biologist Carin Bondar delivers a TED talk about the wilder side of sex.