Lab Notes: Why some mums have all boys or all girls

from The Science Show - Separate stories podcast · host Australian Broadcasting Corporation

If you've given birth to three daughters, what are the odds that your next child will also be a girl?One in two, right? Well … maybe not.The odds of having a fourth girl could be a fair bit higher than 50 per cent, according to a new study into families with single-sex sets of siblings.

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If you've given birth to three daughters, what are the odds that your next child will also be a girl? One in two, right? Well … maybe not. The odds of having a fourth girl could be a fair bit higher than 50 per cent, according to a new study into families with single-sex sets of siblings.

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Lab Notes: Why some mums have all boys or all girls

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This episode was published on July 22, 2025.

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