Skewed Sex Ratios at Birth
Channel: Salvatore Babones
Date: 2018-03-16

Biologically, in human beings an average of around 105 boys are born for every 100 girls.

This seems to be nature's way of adjusting for the fact that boys seem to be constitutionally weaker than girls in infancy and more prone to accidents in adolescence.

Historically, female infanticide (the killing of babies) was common in many countries, leading to skewed sex ratios.

Today, skewed sex ratios have returned have returned in many countries -- but now as the result mainly of sex-selectve abortion and artificial insemination.