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

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

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

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 ...

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

The X chromosome carries numerous genes that are important for human immune responses, so it was critical to find out whether the effects of estrogen would be the same in cisgender females and ...

World Athletics president Sebastian Coe says the track and field’s governing body has approved the introduction of cheek ...

Women have a higher proportion of key immune cells between puberty and menopause, which may be linked to the sex hormone ...

Scientists at EMBL have captured how human chromosomes fold into their signature rod shape during cell division, using a ...

For successful cell division, chromosomal DNA needs to be packed into compact rod-shaped structures. Defects in this process can lead to cell death or diseases like cancer. A new study has shown how ...