If you’re thinking about getting a guinea pig (Cavia porcellus), you probably have some questions about how to choose the ...

This valuable study reports the conservation of sperm-egg envelope binding by demonstrating successful recognition of the micropyle in fish eggs by the mouse sperm. However, the evidence supporting ...

PARTNERS. A VOTE TONIGHT ADVANCES A BILL THAT SEEKS TO DEFINE MALE AND FEMALE IN NEBRASKA LAW, AND ALSO LIMIT ACCESS TO BATHROOMS, LOCKER ROOMS AND SPORTS TEAMS. BASED ON THAT CRITERIA.

Ever been told to "just plug the male end into the female port" and suddenly felt like you missed a day in tech class and health class? You're not alone. Despite the oddly anatomical terminology ...

Podcaster Joe Rogan mocked Pennsylvania Democratic State Sen. Lindsey Williams for suggesting male and female athletes are physically interchangeable. Williams gave controversial testimony at the ...

Rep. Mary Miller (R-IL) and Sen. Roger Marshall (R-KS) teamed up on Wednesday to introduce the Defining Male and Female Act. “Now more than ever, we must unite to uphold the truth and biological ...

That order states it is the “policy” of the U.S. to “recognize two sexes, male and female.” HHS’s guidance, according to the agency, recognizes “male and female” as the only sexes.

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. A few hours after taking the oath of office Monday, President Donald Trump ...

WASHINGTON — President Donald Trump on his first day in office Monday issued an order defining a person’s sex as “male or female” — requiring government agencies to use the “immutable ...

Still, more say all-female groups have a positive impact on women’s well-being (67%) than say the same about the impact of male-only groups on men (56%). In thinking about the impact these types of ...

Specifically, the researchers found that both male and female chickens devoid of androgen receptors turned out to be infertile. But the males still developed testicles and the females ovaries ...