In evolutionary terms, fitness is defined as an organism's ability to survive and reproduce its genes into the next ...

Trump has positioned himself as the leader of the "pro-family" party. But he's been attacking kids since his first day in ...

Did you know men and women's heart cells prefer different kinds of fuel? Gender differences are emerging as scientists turn ...

For teenage girls, the right of passage into womanhood is straightforward –pimples in the face, periods arriving, breasts filling out – but a few Kenyan girls, never go through this. Thanks to a ...

The Texas Senate passed a bill to prohibit individuals in Texas from changing their biological sex on their birth ...

The Washington Post and Associated Press articles Thursday both favored the faux female athletes over real girls and women.

This fight is about doing what is right, not what is popular. It is about ensuring that young athletes — especially young ...

While this internal rivalry is usually hard to see, it becomes clearer when it involves genes on the X and Y chromosomes, ...

The sex-ratio balance is maintained as genes on the X and Y chromosomes co-adapt to keep each other in check. How this happens has been a mystery, as sperm cannot be grown in a lab. The U-M team found ...

CHENGDU, April 3 (Xinhua) -- Chinese researchers have decoded the DNA of a unique snake species that reproduces without males, uncovering their fascinating genetic adaptations. The findings were ...