Why a baby's sex may not be purely random or evenly split
TL;DR
A study published in Science Advances suggests that a baby's sex is influenced by family-specific factors, maternal age, and genetics, challenging the notion that it is purely random, with some families more likely to have children of the same sex than expected by chance.
- It’s a girl — again! And again! Why a baby’s sex isn’t random. The Washington Post
- A child’s biological sex may not always be a random 50-50 chance Science News
- Your chance of having a boy or girl may not be 50/50 New Scientist
- Having only boys or girls sometimes runs in the family. Here's why BBC Science Focus Magazine
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