Madeleine Finlay sits down with her co-host and Guardian science editor, Ian Sample, to discuss three science stories from the week, including a study that offers a clue in the age-old debate about whether sex differences are present from birth or a product of socialisation. Also on the agenda i...

Source: [Guardian Science](https://www.theguardian.com/science/audio/2026/sep/24/are-baby-girls-more-sociable-super-el-nino-meningitis-outbreak-explained-podcast)

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