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Download the Nature Podcast 22 October 2025
In this episode:
00:48 How hunger, hormones and aggression interact in mouse brains
Researchers have uncovered the neural mechanisms that underlie an aggressive behaviour in mice prompted by hunger and hormonal state. Virgin female mice can become aggressive towards mouse pups when they are food deprived, but it seems that the relevant amounts of pregnancy hormones, oestrogen and progesterone, also played a role. By investigating the neurons involved, neuroscientists showed how hunger and hormones are integrated by the brain to lead to aggressive behaviour. This could help researchers understand more about how multiple stimuli are interpreted by the brain, something much harder to study than single stimulus effects.
Research Article: Cao et al.
09:35 Research Highlights
The overlooked environmental costs of wastewater treatment facilities — plus, an ancient communal hunting system that lasted well into the eighteenth century.
Research Highlight: Wastewater treatment produces surprising amounts of greenhouse gases
Research Highlight: Andean peoples hunted and gathered long after they embraced farming
11:53 What generative AI could mean for higher education
Around the world, universities and students are scrambling to adapt to the use of generative AI tools such as ChatGPT. And although there is optimism that these tools could improve education, there are also concerns about the ways they could stifle independent, critical thought. We hear about the studies trying to unpick the potential impact of this new technology.
News Feature: Universities are embracing AI: will students get smarter or stop thinking?
21:26 Briefing Chat
A blood test for Alzheimer’s, and what should be the next ‘test’ for AI after the Turing test?
Nature: Blood tests are now approved for Alzheimer’s: how accurate are they?
Nature: AI language models killed the Turing test: do we even need a replacement?
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