A study analyzed decades of births and found that larger families showed a distinct tendency toward all girls or all boys, ...

A massive study of over 58,000 women shows that families may have their own subtle biological bias toward having boys or ...

Such a good girl or Be a good boy... These sentiments reverberate through every Indian household, and expressed in love, ...

We commonly think that sperm determines the sex of a child, depending on whether it carries an X or Y chromosome, but a study now suggests that a woman's age is also a factor ...