This is read by an automated voice. Please report any issues or inconsistencies here. I recently watched a viral video of a Texas A&M student challenging her professor for discussing “gender and ...

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs), but for other body organs it is of little help. A new study by the Max ...

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs), but for other body organs it is of little help. A new study now shows: ...

We’ve all heard the phrase, “a fish out of water,” but these fish take it literally. As you can see in this YouTube video, splash tetras lay their eggs on a leaf overhanging the water. Only 1% of the ...

Splash tetras (Copella arnoldi) are freshwater fish native to the slow-moving tributaries of the Amazon River basin in South America. They typically inhabit shallow water with overhanging vegetation.

A federal judge has ordered the State Department to revert to the policy in place before President Trump retook office, allowing U.S. citizens to self-select a gender designation that includes ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

CNN hosts derided Health and Human Services (HHS) Secretary Robert F. Kennedy Jr.’s new guidance on biological differences between men and women, claiming such "new definitions" are more restrictive ...

It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...

President Trump issued an executive order limiting gender definitions on Monday. On his first day back in office on Monday, President Trump issued an executive order declaring that the U.S. government ...

Arizona lawmakers are again trying to embed in state law a requirement that "sex" can only mean a male or female, a definition that would bar any reference to people who identify as transgender or ...

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 issued an ...