Sex prediction: Am I having a boy or girl?

Archaeology’s sexual revolution. Graves dating back thousands of years are giving up their secrets, as new ways to pin down the sex of old bones are overturning long-held, biased beliefs about gender and love

Biological factors and gender norms may explain reported differences in male and female COVID-19 case and death rates in 133 countries.

Boy or girl? It’s in the father's genes. Men inherit a tendency to have more sons or more daughters from their parents. This means that a man with many brothers is more likely to have sons, while a man with many sisters is more likely to have daughters.