It’s a boy!

Things I learned today, via Our World in Data: sex ratios at birth are slightly biased towards boy babies for biological reasons. The “natural” sex ratio is about 105 boys born for every 100 girls.

Why is this? Miscarriage rates are slightly higher for female babies than for male babies, although this varies by phase of the pregnancy.

So the next time you’re guessing a baby’s sex, the odds are in your favor if you guess it’s a boy!